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

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

This massive boulder is either a unique rock formation created by glacial melt or a magic energy vortex.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

A bronze monument to the infamous radio broadcast in the real New Jersey town where the fictional Martians crash-landed.

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

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

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

A whimsical monument deep in this park commemorates the groups that helped build it.

It would take 35 firetrucks to fill this enormous glacial pothole.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.