An isolated dive site teeming with cnidarians.

This massive Maya archaeological site is home to the tallest man-made structure in Belize.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

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

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

This massive wooden building contains a giant Buddha, healing pillars, and tame deer wandering the grounds.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

The other side is actually green.

After sunset the heart of Zanzibar's historic Stone Town neighborhood transforms into a culinary playground.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

The legendary building that needed ghostly approval before being built.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

France's most famous cemetery, with some of its most curious tombs.

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

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.