White House, obscure facts
What’s under the White House? Discover 10 incredible secrets revealed
Image: David Everett Strickler
For more than two centuries, the White House has served as the home of American presidents and the center of the executive branch of the U.S. government. But behind its famous columns and historic rooms lies a hidden world that most visitors never see. Beneath the mansion are secret bunkers, underground passageways, forgotten spaces, and surprising facilities built for emergencies, security, and private presidential life. Take a look at 10 of these incredible secrets. Did you know about any of these?
1
Hidden bunker
Beneath the East Wing sits the Presidential Emergency Operations Center (PEOC), a heavily fortified bunker created during World War II for President Franklin D. Roosevelt. It was expanded during Harry Truman’s massive White House renovations from 1948 to 1952 and became one of the safest locations in Washington, D.C.
The bunker became widely known after the September 11, 2001, attacks, when Vice President Dick Cheney and senior officials were rushed underground by the Secret Service. It was eventually dismantled in October 2025 when the entire White House East Wing was torn down by work crews to make way for a new, modernized underground command center and a large State Ballroom
2
Indoor swimming pool
An indoor swimming pool was installed in 1933 by Franklin D. Roosevelt, who used swimming therapy to help manage the effects of polio. The pool was considered extremely modern for its time, with underwater lighting and advanced filtration systems .
Harry Truman, John F. Kennedy, and Lyndon Johnson all used the pool regularly. In 1970, President Richard Nixon ordered the space converted into the White House press briefing room, though the original pool structure remains hidden underneath the floor today.
3
Dentist office
Very few people realize the White House has had its own dental office since the Hoover administration in the early 1930s. The facility was placed in the basement so presidents could receive emergency treatment without leaving the building .
Historic photographs from March 10, 1948, show the office fully equipped before the Truman renovation began. Barack Obama later joked in an interview that he was surprised to discover "the whole chair" and dental setup hidden beneath the White House. The practice is still fully operational and in use today.
4
Private movie theater
The White House once contained its own private movie theater inside the East Wing. Created during Franklin Roosevelt’s presidency in the 1940s, the room was converted from a cloakroom into a screening space during wartime renovations .
Presidents have used the theater for both entertainment and diplomacy. Ronald Reagan frequently screened westerns there, while modern presidents have previewed major Hollywood releases before public premieres. The theater was demolished in October 2025 alongside the rest of the East Wing to make way for a new state ballroom.
5
Almost demolished during the Truman era
By the late 1940s, the White House had become dangerously unstable, physically speaking. Floors sagged, walls cracked, and parts of the building were close to collapse after decades of expansions and poor structural support .
President Harry Truman ordered a complete gut renovation from 1948 to 1952. The interior was almost entirely dismantled while the exterior walls were temporarily held in place with steel supports. The Truman family lived across the street at Blair House during the reconstruction.
6
Escape route for the Cold War era
During the Cold War, secret underground passageways and emergency routes were reportedly added beneath the White House complex to prepare for nuclear threats . Many details remain classified even today.
The reinforced underground network connected secure areas beneath the East Wing and surrounding government buildings. These emergency systems were especially strengthened during the Truman renovation as fears of atomic attack grew in the early 1950s.
7
The attic was used as wartime storage
During World War II, unused areas of the White House attic were used as storage for emergency supplies, documents, and wartime materials . Security concerns dramatically increased after the attack on Pearl Harbor in 1941.
The upper levels of the mansion were also used to protect historic furnishings and archives during renovation projects and wartime precautions. Many visitors never realize the White House includes hidden utility and storage spaces above the famous state rooms.
8
Secret floral workshop
The White House maintains a hidden floral design workshop operated by an official team of florists. They prepare thousands of flower arrangements each year for state dinners, diplomatic receptions, and holiday events.
The operation works behind the scenes to coordinate flowers with historic rooms, national traditions, and visiting foreign leaders . Designers often work overnight before major ceremonies so arrangements appear fresh for televised events and tours.
9
Forgotten rooms and artifacts
The White House contains dozens of lesser-known rooms rarely seen by the public, including old service areas, storage rooms, and spaces left over from earlier renovations . Some hidden corners still preserve traces of earlier administrations.
Historic artifacts are also stored throughout the mansion and its underground levels, including furniture, paintings, and decorative objects removed during renovations. Some pieces date back to the early 1800s and are noted in and out of public rooms over time.
10
Multiple underground levels
Most visitors never realize the White House extends far below ground level. In addition to the main floors, the complex includes sub-basements, mechanical systems, secure communications areas, kitchens, storage facilities, and emergency infrastructure.
Historians estimate the White House contains roughly 55,000 square feet and six levels in total . Much of the underground structure was reinforced with concrete and steel during the Truman renovation to improve security and stability.
