A centuries-old stone pagoda from Japan stands among cherry trees beside the National Mall Tidal Basin.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

There’s a hidden military meme engraved on the World War II Memorial.

The sculptor was instructed to add “stallion attributes” to the general's bronze mare.

The only female equestrian statue in Washington, D.C. is a 15th-century French heroine.

This unacceptably tall building was the real reason for Washington, D.C.'s skyscraper ban.

This restaurant has been a haven for D.C.'s LGBTQ community since the 1950s.

Engraved in stone here are the signatures of everyone who signed the Declaration of Independence.

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

This apartment building designed by a notable Washington D.C. architect housed the Qing Dynasty's Legation.

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

The "Key of Keys" for Washington, D.C. and the apocryphal landing place for the military campaign that started George Washington's career is now at the bottom of a well.

A terrace reminiscent of Rome's Spanish Steps is tucked away in a little park in Washington, D.C.

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 Civil War fort in the middle of Washington, D.C. has been swallowed by a forest.

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

The national park was once a plantation estate.

A battleship’s mast sits atop a turret-like memorial, commemorating those who lost their lives in one of the precipitating events of the Spanish-American War.

An oft-overlooked, magically musical monolith that stands majestically between Arlington Cemetery and the Iwo Jima Memorial.

Recorded as the first person buried in Arlington Cemetery.

The rogue roots are gradually consuming some of the historic marble grave markers.

Surrounded by a verdant garden and a backdrop of ivy, a monument to beloved poet Khalil Gibran stands outside of the Lebanese embassy.

A gift from Scotland to the United States in memory of the 270 lives lost when Pan Am Flight 103 exploded over Lockerbie due to a terrorist bombing.

This historic boathouse was constructed using salvaged lumber from burned barns.