Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

This Oregon farm is dedicated to teaching people the professional art of tree climbing.

Hollowed out cedar log tubs set in an ancient towering forest.

This giant meditative chakra sits peacefully in the Flathead Valley of western Montana.

A classic mystery spot complete with spots that are said to make you shrink or grow when you stand on them.

A hiking area billed as a possible home to Bigfoot.

This expansive bridge in the Canadian wilderness was originally just built for friends.

A backdoor to Machu Picchu that only the most foolhardy infiltrator would attempt to breach.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Mysterious Incan ruins on a tiny island in Lake Titicaca.

An ancient Incan convent on Lake Titicaca's Island of the Moon.

A musical instrument played by the sea.

An old world fairytale-land with over 350 fairy folk figurines hidden amongst 800 year old cedars.

The second tallest railway trestle bridge in America.