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

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

A small, emotionally charged room inside the Mario Testino Museum dedicated to Princess Diana and one famous photo shoot.

The mysterious "Candelabra of the Andes" could represent anything from a god's trident to a hallucinogenic plant.

This stone complex marks the urban center of a lost civilization.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

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

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

Practice your Dirty Dancing lifts in the manmade lake where Johnny Castle himself did.

This tiny tropical village was sick of anonymity so the locals made this sign, which actually changed the name of the town.

The floor of the oldest surviving synagogue in the Americas is entirely covered in sand.

Like something out of a pulp adventure, this abandoned plane wreck is slowly being retaken by the Caribbean jungle.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

The largest source of fossilized insects anywhere.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

A school teacher's massive and terrifying self-built castle.

The mouldering manses of wealthy colonials still pock the streets of a Curaçao neighborhood.

This 19th century mansion façade adorned with immigrant patriotism is a symbol of Louisville’s history.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

One of the oldest living oak trees in the Southeast.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.