This massive store is home to an eccentric collection of vintage, retro, and peculiar goods.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

This abandoned hospital is one of the most haunted places in Costa Rica.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

Once a place of peaceful repose, this sanitarium now faces an uncertain future.

A priceless collection of the Nation's cryptologic history.

A haunting exhibit in a wildlife refuge center highlights threatened species and the conservation efforts needed to save them.

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

This tiny stone in a children's park is what remains of an ancient, once-worshipped object.

These oldest of these "embroidered stones" were carved 4,000 years ago in a high mountain valley.

These unique rock formations were created during the Ice Age.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

Not quite the menace it once was, this monster still has some chops.

Dedicated to the armor and weapons used by the legendary Japanese warriors.

Sniff the Titan Arum's rotting flesh.

The ruins of an ancient fortification wall sit in front of and underneath this boutique hotel.

Oldest building in California still in use.

This hunter-gatherer architecture is believed to be the oldest religious complex known.

The oldest surviving mosque in the UAE has mysterious origins and unusual architecture.

This collection of vintage signs reflects the long and colorful history of this Arizona town.

Concrete crosses scattered across the Arizona scrubland which were used to align spy satellites.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

A stone pillar marking the location of the westernmost battle of the American Civil War only honors one side of the conflict.

Ride the subways of yesteryear.