Megachurch turned Catholic church comprised of 10,000 glass panes.

This dark, quiet forest on the outskirts of San Diego is dense with rumor and lore.

The site of murders and Satanic cult gatherings.

A meditative space out of a fantasy story.

Located on 420 acres in the high desert, this spiritual center is dedicated to the "science of the future."

America's Most Wanted's set resides in this tribute to the history of crime and punishment.

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

A memorial to a shareholder activist feared by CEOs around the United States.

This stately mansion, built in 1787 by America's first Secretary of the Navy, is rumored to be one of the most haunted buildings in Washington, DC.

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

Art deco landmark on the outskirts of Washington, D.C.

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

Home to a vast and influential collection of Shakespeareana.

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

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

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.

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

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

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

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

Government testing at the asylum briefly explored using marijuana as a "truth serum" on Nazi prisoners of war.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

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

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