A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

A whimsical monument marks the highest point in Kansas, not that you could tell by the looks of it.

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

A scenic fort on the harbor protected Philadelphia from an attack that never came.

One of the world's largest model railroads is a mind-boggling achievement.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

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

A unique sculpture park that specializes in the huge and bizarre.

A modern ghost town whose inhabitants were driven away by the growth of nuclear power.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Mysterious rocks that ring musically when struck.