Also known as the Founding Church of Scientology.

They sort through millions of dollars worth of diplomatic gifts on behalf of the government.

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

This unique museum cafeteria showcases the history and regional diversity of African American cuisine.

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

Senators used to relax in the nearly forgotten marble tubs now hidden in the U.S. Capitol Building's basement.

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

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

An easily overlooked memorial to a Ukrainian famine-genocide that killed over 4 million people.

The span is crooked and made from two older recycled bridges.

Decades before the scandal, this staircase on the river was a literal "water gate."

A brass plaque dedicated to a convicted cannibal hangs in the National Press Club, and that's not even the craziest part of the story.

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

A celebrity from the late Cretaceous period.

The hidden offices underneath Memorial Bridge have been locked up since 1976.

A super-sized promotional trick that is now a D.C. landmark.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

Cold War intelligence agents monitored communist embassies from an attic in a former pigeon coop.

This imposing Masonic temple a mile from the White House was the first public library in Washington, D.C.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

The famous abolitionist’s preserved estate is one of Washington's finest monuments to its great Black citizens.

A Spiritualist house of worship where believers communicate with the dead in the spirit world.

A rotating cast of guys and dolls in front of a Washington, D.C. building.

The walls of the iconic dome are hollow and have a secret stairway.