1

$125 million for a Grade-school math error

Image: Aaron Lefler

Imagine losing a hugely expensive spacecraft due to a simple mix-up between English and metric measurements . That is exactly what happened to NASA in 1999 when a Mars orbiter designed by Lockheed Martin was lost in space.

The confusion caused a malfunction on the $125 million craft, resulting in the probe’s loss. Although it was unusual for Lockheed to use English measurements for a NASA design (since NASA had stipulated using metric measurements for many years), there were still several instances where the error should have been caught but wasn’t.

2

Toys ‘R’ Us blunder

Image: Taylor Heery

If you think an action figure of a drug dealer isn’t the best idea for a toy store , you’re not alone. Yet, for some reason, Toys "R" Us decided otherwise in October 2014, possibly hoping to cash in on the massive success of the Breaking Bad TV series.

Unsurprisingly, the giant toy retailer was forced to pull from its shelves four collectible dolls based on characters from the AMC hit show, each doll featuring a detachable sack of cash and a bag of meth.

3

Apple Maps' rocky beginnings

Image: CardMapr.nl

When Apple decided to launch its own map application on iOS devices after a conflict with Google in 2012, users quickly realized that the Apple app was not nearly as launch-ready as it should have been .

Locations were mislabeled, roads were missing, and it occasionally steered people in entirely the wrong direction. The problem was eventually, though largely, resolved, but it was an embarrassing misstep for a company known for never launching a product before it was as near-perfect as possible.

4

Bank of America debit card fee

Image: Ali Mkumbwa

Back in 2011, when the backlash against the banking industry had not yet reached its boiling point, Bank of America announced it would charge customers $5 per month to use their debit cards .

It was a bad business decision. More than 300,000 people signed an online petition, and Fox Business Network’s Gerri Willis cut up her debit card on air. The bank pointed to federal regulations as the reason for the charge but ultimately capitulated to consumer demand after a month before the fees went into effect.

5

$33 airline tickets from Toronto to Cyprus

Image: Miguel Ángel Sanz

If buying a business class ticket regularly priced at $2,558 for just $33 sounds too good to be true, it probably is. Except in 2006, when an Alitalia employee accidentally forgot to input two extra zeros when pricing business-class tickets from Toronto to Cyprus.

Due to the exchange rate on that day and the blunder, hundreds of buyers managed to snag fares for just $33. The airline honored those deals, accepting the heavily discounted price for the 509 people who purchased tickets before the error was detected.

6

A $70 million comma

Image: Nattipat Vesvarute

As the folks at NASA and Alitalia have shown us, small errors can lead to costly mistakes. The following blunder comes courtesy of Lockheed Martin , which issued a contract to a customer with a missing comma in the sale price .

The astute customer held the aerospace company to the contract, costing Lockheed Martin $70 million for a C-130J Hercules aircraft in June 1999.

7

Sears misses the ship

Image: Estefania Cortes

A retail giant that faced a situation similar to the one Kodak faced—embrace the new and unknown or cling to the old, successful recipe—Sears sold everything from socks to tires via mail order, shipping across the U.S.

Choosing to stick with the old method, the company ended its catalog and delivery business in 1993 . In 1994, Amazon was founded , filling the business void that Sears had just created. The rest is history.

8

Passing on Microsoft

Image: Jaime Marrero

$60 million might seem like a lot of money to us regular folks, but for someone with very deep pockets like Texas businessman and two-time U.S. presidential candidate Ross Perot, it wasn’t all that much.

In 1979, he was offered the chance to buy Microsoft for that sum. However, his final offer to the tech company was just $15 million, and as a result, the Texan missed out on the opportunity to own what would become one of the biggest companies in the world .

9

Blackberry sticks with the old

Image: Thai Nguyen

Another case of a brand sticking with the old instead of embracing the new, BlackBerry was all the rage at the start of the 21st century— until Steve Jobs came along with the Apple iPhone .

While BlackBerry Messenger was extremely popular, with over 80 million users worldwide, the device lacked the new touchscreen functionality and sleek design of the Apple product. From being a market leader, BlackBerry’s market share plummeted to 0.2% by 2016.

10

RadioShack’s downfall

Image: Jelleke Vanooteghem

Not so long ago, RadioShack was a familiar presence on the streets and the go-to place for buying batteries and electronics. But it was that same brick-and-mortar presence, coupled with a reluctance to embrace e-commerce , that ultimately led to its demise .

Eventually, poor profit margins on what they could sell, combined with a loan they couldn’t repay, brought down what was once the go-to place for electronics.

1

Compression packing cubes

These zippered fabric cubes let you sort your clothes by category—shirts in one, pants in another, underwear in a third—and then compress them down by squeezing out excess air. They keep everything tidy and surprisingly compact . Most come in sets of different sizes, so you can mix and match depending on what you're packing.

Imagine you're flying to visit family for a long weekend but want to avoid checking a bag. Without packing cubes, that's a puzzle. With them, you'd be amazed what fits into a carry-on.

2

Portable luggage scale

This little handheld device hooks onto your bag's handle and gives you an instant weight reading. It costs about $10and weighs almost nothing itself. Use it the night before your flight, and you'll never get blindsided by an excess baggage fee of $50 (or more) again.

Picture this: you've spent a week in Florida and picked up a few things for the house. You think your bag is fine. The airline disagrees—to the tune of $75. A luggage scale would have caught that before you ever left the hotel room, giving you time to rearrange or ship something home instead.

3

Doorstop alarm

This wedge-shaped gadget slides under your hotel room door and sounds a piercing alarm if someone tries to push it open. It's a simple, inexpensive way to add a layer of security that the hotel deadbolt alone doesn't always provide. It fits in the palm of your hand and weighs almost nothing.

If you're traveling solo or in an unfamiliar area, peace of mind matters . Prop one of these under your door at night, and you'll sleep a lot better, knowing that if anyone tries to come in uninvited, the whole hallway is going to know about it.

4

Foldable tote bag

A lightweight tote bag that folds into a tiny pouch is one of those things you'll reach for constantly once you have it . Use it as an overflow bag on the way home when your suitcase is full of souvenirs, or as a beach bag, a grocery bag, or a day-trip bag when you don't want to lug your whole luggage around.

Say you're on a cruise with a port stop in a charming little town. You want to browse the market and pick up some local olive oil and pottery. You didn't plan for that. But if you've got a foldable tote tucked in your bag, you won’t have to scramble for a bag at the gift shop.

5

Travel clothesline

This is a simple elastic or bungee-style cord that stretches between two points—a towel bar, a bedpost, a shower curtain rod—so you can hang hand-washed clothes to dry overnight. No suction cups, no hardware, nothing complicated.

If you're on a two-week trip and trying to pack light, being able to wash a few things in the sink and hang them up makes a real difference . Woke up in Rome and realized you need your shirt for the following day? Wash it, and it will be dry by morning.

6

Universal travel adapter

Different countries use different outlet shapes and voltages. A universal adapter handles all of it— Europe, Asia, South America, the UK—in one compact device . Most modern ones also have built-in USB ports, so you can charge your phone directly without needing a separate plug.

You've landed in London, and your phone is at 8%. Your American charger is useless in a British outlet. One universal adapter, and that problem will never exist again. It's a one-time, ten-dollar fix for something that can otherwise ruin a morning.

7

RFID-blocking pouch

Modern credit cards and passports have chips in them that can, in theory, be scanned wirelessly by someone nearby. An RFID-blocking pouch or wallet liner prevents that from happening by creating a simple signal-blocking barrier around your cards .

Crowded airports, busy subway stations, tourist hotspots; these are exactly the environments where electronic pickpocketing is a concern. Slipping your passport and cards into an RFID pouch takes two seconds and gives you one less thing to worry about in a busy place.

8

Portable hard drive

A compact external hard drive is no bigger than a deck of cards and lets you back up your photos and documents while you're still on the road. You don't need Wi-Fi, you don't need cloud storage, and you don't need to worry about your phone running out of space at the worst possible moment.

Imagine you've spent eight days photographing the national parks out West. You have thousands of pictures and irreplaceable memories, but your phone gets lost or stolen on day nine. Without a backup, those photos are simply gone. With a portable hard drive, you plug in each night, transfer the day's shots, and travel with the peace of mind that your memories exist in more than one place .

9

Compact extension cord with USB ports

Hotel rooms have a frustrating habit of putting their one or two outlets in the least convenient spots: behind the bed, across the room from the desk, nowhere near where you actually sit. A compact extension cord with built-in USB ports solves this instantly. You plug it into whatever outlet exists, and suddenly you've got four or five charging options right where you need them .

Picture arriving at your room after a long travel day with a dead phone, a tablet that needs charging, and a CPAP machine to plug in before bed. One outlet, three needs. A compact extension cord turns that into a non-issue in about ten seconds, and it takes up barely any space in your bag.

10

Collapsible water bottle

When it's empty, a collapsible silicone water bottle folds flat, thin enough to slip into a jacket pocket . When you need it, it expands and holds a full 20 ounces or more. It's TSA-friendly when empty, and you can fill it right after security.

Staying hydrated on a long travel day matters more than most people realize, especially if you're dealing with heat, walking a lot, or spending hours in dry airplane air.

1

Grand Prismatic Spring

Image: MikeGoad

The steaming, multicolored circle of the Grand Prismatic Spring is one of the most hypnotic and unique sights in the U.S. Part of Yellowstone National Park, this hot spring is the largest in the country and the third-largest in the world, measuring 370 feet wide and 160 feet deep.

Its vibrant colors, ranging from deep blue in the center to fiery red and orange at its edges, are unlike anything we see in nature every day. Minerals and microbes are responsible for these hues, with water temperature causing the pigments to fluctuate . The spring owes its existence to geothermal activity driven by Yellowstone's underlying magma chamber and is located in the Midway Geyser Basin.

2

Fly Ranch Geyser

Image: Ken Lund, CC BY-SA 2.0

One of the reasons why Fly Ranch Geyser is unique in the world is that it was formed after a human accident . This technicolor geothermal geyser, located on the Fly Ranch property in the Hualapai Geothermal Flats of Washoe County, Nevada, wasn’t there before 1916.

In 1916, while drilling a well for irrigation in the area, workers struck near-boiling geothermal water, leading to the creation of the first geyser. Decades later, in 1964, a geothermal energy company drilled a second well nearby, which caused the emergence of the Fly Geyser we know today. It has been spouting water into the sky ever since, forming several cone-like vents atop a mound that continues to grow.

3

Devil’s Kettle

Image: chrishawaii

Where does the water from the Brule River go when it falls? For a long time, this was a mystery. Located in Judge C.R. Magney State Park near Grand Marais, Minnesota, along the North Shore of Lake Superior, the river is famous for its unusual split: one half flows downstream, while the other plunges into a seemingly bottomless hole .

This waterfall has baffled visitors and scientists for years because objects thrown into the "kettle," such as logs and ping-pong balls, appeared to vanish without resurfacing. This fueled theories of underground rivers or deep caverns beneath the falls. The mystery was solved recently when hydrologists discovered that the water entering the kettle resurfaces downstream . The kettle's strong currents explain why objects thrown in don’t resurface; they are broken apart and held underwater, functioning like a natural washing machine.

4

Mono Lake Tufa Towers

Image: Stephen Leonardi

These unique limestone formations, known as the Mono Lake Tufa Towers, emerge from the salty, alkaline waters of Mono Lake , fed by underwater springs. Located in eastern California, near the Sierra Nevada mountains and about 13 miles east of Yosemite National Park, they are a striking natural wonder.

These tufa towers rise dramatically from the water. How were they formed? Mono Lake has no outlet, so its high alkalinity and salinity caused minerals to accumulate over time. This unique environment supports an ecosystem of brine shrimp, alkali flies, and migratory birds. To give you an idea, the lake’s salinity is more than twice that of the ocean, which means you could float effortlessly in its waters, as many visitors do.

5

Crater of Diamonds

Image: Brett Sayles

If you find a diamond here, you get to keep it—this is the only diamond-bearing site in the world where that's possible. Open to the public for mining , the Crater of Diamonds is a 37.5-acre field located near Murfreesboro, Arkansas. It marks the eroded surface of a volcanic pipe composed of lamproite, a rare volcanic rock.

Visitors sometimes find diamonds of various colors, including white, yellow, and brown, along with other gems like amethyst and garnet. It was here that the "Uncle Sam Diamond" was found, the largest diamond ever dug out in North America, weighing 40.23 carats. Diamonds were first discovered here in 1906 when a local farmer found unusual crystals on his land, which sparked a minor diamond rush.

6

Antelope Canyon

Image: Roberto Lee Cortes

Rocks that look like flowing water: Antelope Canyon is a famous and breathtaking slot canyon in northern Arizona. It consists of two main sections: Upper Antelope Canyon (a.k.a. Tsé bighánílíní, or "the place where water runs through rocks") and Lower Antelope Canyon ( Hazdistazí, or "spiral rock arches").

The canyon was formed over millions of years as flash floods and desert winds eroded the Navajo Sandstone. Even today, seasonal flash flooding continues to shape and carve the canyon’s mesmerizing features. Its surreal, wave-like formations in shades of orange are a favorite subject for photographers and tourists from all over the world.

7

Petrified Forest

Image: Megan Clark

The Petrified Forest National Park in northeastern Arizona boasts one of the world's largest and most vibrant concentrations of petrified wood . The park, part of the Painted Desert, is located between the Apache and Navajo Counties.

Most of the wood found there is from ancient conifer trees that date back about 225 million years to the Late Triassic period. These trees were swept into river systems, buried by sediment, and transformed into stone through a process called permineralization . The park also features a wealth of fossilized remains of ancient animals, including early reptiles.

8

Devils Tower

Image: Kyle Petzer

The Devils Tower stands alone, protruding dramatically from the plains. Considered sacred by Native American tribes, it was originally called "bad god’s tower," a name that eventually evolved into its current form. Located in northeastern Wyoming, this igneous rock monolith soars 867 feet above its base.

It was designated the first U.S. National Monument by President Theodore Roosevelt in 1906. Geologists agree that Devils Tower was formed through the intrusion of magma into sedimentary rock layers about 50 to 60 million years ago. Today, climbers from around the world are drawn to its sheer walls, though climbing is prohibited in June to honor Native ceremonies.

9

The Wave

Image: Mark Nemenzo

The Wave is a visually stunning sandstone formation located in the Coyote Buttes North area of the Vermilion Cliffs National Monument. Known for its hypnotic, swirling bands of red, orange, and yellow, its delicate ridges are so easily damaged that even one misplaced footstep could ruin the beautiful patterns.

Approximately 185 million years ago, this area was a vast desert covered in dunes. Over time, layers of sand were deposited, compacted, and cemented, forming this Navajo sandstone shape. Unfortunately, The Wave is only accessible by a challenging hike that requires a permit, due to the fragility of its ecosystem and high demand from visitors. With less than 5% of applicants obtaining a permit each year, it is one of the most exclusive hiking destinations in the world.

10

Kasha-Katuwe Tent Rocks National Monument

Image: Bruce Warrington

The Kasha-Katuwe Tent Rocks National Monument, located in northern New Mexico, displays a unique landscape of tall, cone-shaped rock formations. These "tent rocks," composed of pumice and tuff, are known as "hoodoos." They are natural formations ranging from a few feet to approximately 90 feet tall.

The name "Kasha-Katuwe" means "white cliffs" in the Keresan language of the Cochiti Pueblo. Hiking trails, such as the Slot Canyon Trail, offer visitors the opportunity to explore the cones up close while walking through dramatic, narrow canyons.