Take a self-guided tour through one of Colorado's most elevated mining districts.

The temporary burial site of the man who shot and killed Jesse James.

A hotel with a rich Wild West history of miners and bootleggers.

Two tall rocks sit at the center of this site, once the home of a large Ancestral Puebloan community.

These unusual rooms on wheels are holdovers from the 1960s.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

An overlooked memorial honoring the local Washington residents who died in World War I.

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

This mysterious structure by the Washington Monument is a flood barrier designed to protect the White House against rising waters.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

Look closely and you’ll notice that the color changes a third of the way up the tower.

The house where John Wilkes Booth conspired with his co-conspirators.

A spectacular tribute to statesman and philanthropist Andrew Mellon.

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

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

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

Corn-inthian columns with a uniquely American take on neoclassical architecture.

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

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

At one time this small mining village was the highest town in America but now it sits abandoned while the mine churns on.

This fully restored synagogue explores the American Jewish experience along the old frontier.

No one knows exactly how deep the world’s deepest geothermal hot spring is.

Possibly the world's only drive-in movie theater with an attached motel.

Meet cowboys and ancient beardogs at this one-of-a-kind crossroads of Western history.