A park full of outsider art, created by college students studying outsider art.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

A Maryland museum dedicated to Black history, housed in a historic church.

FDR's Art Deco hospital tower was hopelessly inefficient.

She stares out across six lanes of traffic, clutching a musket and infant with determination.

The childhood home of the Sultan of Swat is just a line drive away from Oriole Park at Camden Yards.

This historic lighthouse was well known for the large number of women who served as its keeper.

A suburban museum tells the story of a historic transportation network and even provides rides in antique trolley cars.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

The design of this historic domed church was influenced by Thomas Jefferson and intended as a statement of religious freedom.

This fort down the Potomac from Washington, D.C. was once the only defensive fort protecting the capital.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.

This dig site outside D.C. is known for its exceptionally high density of baby dinosaur fossils and dinosaur eggs.

An FDR-era tuberculosis sanatorium has stood abandoned in the suburbs of the U.S. capital for over 30 years.

A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

An eerie, decaying ghost town destined to fade into the forest.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

The trials and tribulations of marking Poe's grave.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

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

Taste the white whiskey that the United States' first president once distilled and enjoyed.