A historic estate packed with George Washington's heirlooms, and its own nuclear bunker.

Light bulbs, scrap wood, and tinfoil comprise this homemade throne of the gods.

The grand marble structure next to the White House is Andrew Carnegie's temple to Pan-American diplomacy.

Sip creative cocktails in the former vault of the Riggs Bank.

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

Before Nixon, "watergate" meant canals.

A tribute to the pop culture icon overlooks this Washington D.C. intersection.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.

The word "Watergate" will forever be associated with the infamous scandal in 1972, but this fountain is famous in its own right.

This small hilltop church weaves the urban history of Washington, D.C. with the national history of the United States.

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

You could be standing at the site of one of D.C.'s most fatal tragedies and not even know it.

Garments from across the globe call this hidden gem home.

The hippo that stands on this university campus was once a drunken flea market purchase.

The bank that helped fund the Mexican-American War and the purchase of Alaska met its downfall after helping Augusto Pinochet launder money.

A gorgeous mural outside a beloved D.C. restaurant pays homage to famous Black Americans.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

This bridge over D.C.'s Rock Creek Park is sometimes called the "Buffalo Bridge" because of its four buffalo sculptures, which were cast from a single piece of bronze.

A hidden passageway now marks the site of an assassination attempt on Ronald Reagan that some say broke a 140-year-old curse.

A small triangle of DC grass is the final resting place of one of Sonny and Cher's songs.

Obscure Freemasons still live in D.C.’s largest private residence.

One of the last mosaic tile facades found in the city.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.