The innocent intentions of this monument are somewhat lost in the sculpture's muscled imagery.

For 60 years, the academy had no permanent location until members voted Washington D.C. as its forever home.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

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

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

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.

This lovely pocket park is one of the most under appreciated in D.C.

There's a crumbling old mansion inside the Smithsonian National Zoo.

The most decorated dog of World War I is preserved in the Smithsonian.

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

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

The country's oldest continually-operated mini golf course lies hidden in plain sight, eclipsed by one of D.C.'s most popular tourist attractions.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

A painfully obvious spy house sits right across the street from the Russian Embassy.

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

A historic neighborhood church is reborn as a psychedelic arts collective.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Home to items never before seen by the public.

The site of the climactic scene from the classic horror film is now a historic landmark.

The 320-year-old tree that greeted General Lafayette and rerouted an interstate highway.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

Remnants of a storybook amusement park hidden behind a strip mall.