"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

Penn State's giant bug collection.

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

Over 100 concrete munitions bunkers are all that remain of a Pennsylvanian village seized by the US government.

According to local myth this cemetery is half evil spirits, half good—split down the middle.

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

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.

The only recreation of William Shakespeare's indoor playhouse.

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

Exact replica of the ancient monument, but much, much lighter.

This historic mansion was built as a symbol of love between a husband and wife.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

Hidden for 165 years inside a building designed by Thomas Jefferson are the remains of what may be America's first educational chemistry lab.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

Take an otherworldly journey in a school dedicated to out-of-body experiences.

A quintet of history museums make this Virginia graveyard as much a resting place for funereal history as it is for people.

A "hospital" where people went to be quarantined, die, and be buried in the yard.

The giant scales in this museum can still tell if someone is one of the devil's brides just by weight.

This abandoned Slovenian military barracks has become a punky-political art squat.

This folk art compound was built by a fortune teller on the advice of three people from the future.

A collection of outdoor mystical statues paying homage to indigenous Australians and ecological stewardship.