You thought Santa Claus didn't exist, but it turns out you were wrong.

This open air cathedral invites all faiths to worship under the only roof big enough to fit them all: the sky.

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.

Symbolic attempt to overcome the issues of life.

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

Washington's iconic carousel has a nice piece of Civil Rights history.

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

An unassuming, powerful monument north of the U.S. Capitol bears witness to the resilience of Japanese Americans during a time of grave injustice.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

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

Home to a vast and influential collection of Shakespeareana.

The privately owned cemetery that holds room for Washington's finest when they step down from life.

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.

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

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

Housing the National Women's Party since 1929, this historic house is now a monument to the fight for gender equality.

A celebrity from the late Cretaceous period.

D.C.'s first central library was born out of a chance encounter with the philanthropist whose name it bears.

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

Largest Roman Catholic church in North America.

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

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

The national park was once a plantation estate.

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