This Detroit ruin was once a gothic bastion of its community, but now it stands as a haunting ruin.

Abandoned concert venue legendary for its rock counterculture.

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

This former Indiana quarry has been transformed into a park and SCUBA site where divers can explore the drowned mining equipment.

A large collection of motorbikes with some impressive gems.

The longest navigable underground river in the United States is home to countless blind and albino animals.

This unusual building straddles two countries.

Turns out you can see the world without ever leaving Maine.

This Maine bridge may be the last wire-supported bridge of its type in the world.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

Nature and religion are reunited at this unconventional church in the forest.

These towering spires and glowing walls are carefully crafted from hundreds of thousands of icicles.

This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.

Beautiful natural falls where Satan once ruined a pot of beans.

Even Henry David Thoreau found this glacial pothole irresistible.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

The railroad tunnel nicknamed the "Bloody Pit" for taking the lives of hundreds during its construction.

Over fifty whirling pools left by the glacial age.

A historic bridge with a lovely acoustic anomaly.

A New England ghost town features a trail of boulders etched with intriguing life lessons.

One of the most scenic falls in Massachusetts has a history of death and grim legend.

Secluded amid upstate New York’s Adirondack Mountains lies this subterranean emblem of a nation on the brink of nuclear war. And it's for sale.

Empty, but not abandoned, this cavernous Brooklyn loading dock was once considered the largest individual building in the world.

This locally-famous crevasse in New York State is icy all year round.