The vast, legendary catacombs hold secrets much stranger than stacked bones.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

A huge musical instrument played by the ocean.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

An annual festival celebrating Colorado's most famous frozen corpse.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

A famous flea market artist's studio that's full of odds and ends.

This popular pilgrimage site offers a hole filled with holy healing dirt.

An experimental, automotive replica of Stonehenge.

Adobe ruins punctuate the beauty of an 800 foot canyon carved by the Canadian River.

The highest point in Oklahoma used to be a lawless outlaw's paradise.

Natural sonic phenomenon comes with a grisly legend of murder and blood.

This prison-turned-museum is a remnant of the Old West's grizzly, violent past.

Metal water storage tank turned ethereal concert hall.

A fake mine that was made using real mining techniques which is also used as a community center.

Silver in the hills led to the speedy creation of this boom town and a lack of it saw the town abandoned nearly as quickly.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

Once an unstoppable source of gold and silver, this town came to a grinding stop when the groundwater proved deadly.

The haunted reputation of these abandoned Colorado train tunnels is probably not helped by the terrifying spiked fence.

The remains of the dam that unleashed a 15-foot wall of water on Denver.