These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

This titanic java kettle is one of the many kitschy landmarks located along America's OTHER famous highway.

An abandoned stretch of highway, deteriorating next to the operational one.

The final resting place of an unidentified revolutionary soldier sits behind a Virginia church.

Berkeley Hot Springs presents to you "the only outdoor monument to presidential bathing."

This Virginia railway overpass is said to be haunted by a serial killer in a rabbit costume.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

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

A super-sized promotional trick that is now a D.C. landmark.

This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."

An extensive, if one-sided, history of U.S. law enforcement's war on drugs.

The only National Monument ever to go missing for nearly 50 years then resurface in a dump.

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

An obscure public service from the U.S. government that redeems burnt, moldy, and soiled old greenbacks.

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

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

It was once the base for a series of domestic terror attacks.

A lovely aquatic park built by a one-armed Civil War veteran who made a fortune from lotuses.

Bar full of oddities, specimens, artifacts and homages to the great dime museums of the past.

Perhaps the most scandalous statue of America's first president.

A much-maligned monument to teetotalism.

The fountains of the U.S. Navy Memorial are annually salted with water from the Seven Seas as part of a nautical ritual.

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

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.