Human ancestor’s 3.6 million year-old footprints.

On Japan's Tashirojima Island, cats are king.

A colossal sculptural lion built by the same man who designed the Statue of Liberty.

A complex of six forts embedded in the Rajasthan hills.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

The remains of what was, not so long ago, the world's largest city.

Temples adorned with intricate, erotic sculptures make up one of the "seven wonders" of India.

A towering work of stone and philosophy that was constructed using ancient Hindu science.

This set of rickety spaceships are prepared to give alien travelers a place to relax and go to the bathroom.

On the coast of Sardinia, a once-great mining village is finding new life as a coastal resort town.

An abandoned Indian-inspired mansion.

Sparkling, calcite-covered skeletons of children who may have been sacrificed to appease an angry god.

Home to the deepest rift anywhere on Earth.

Once an ambitious nature spa, these forest ruins now provide a serene monument to failure.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

Prehistoric animals decorate this popular outdoor park.

Artist's eccentric property excessively decorated with found objects and work of his own.

Artist Danielle Jacqui decorates nearly every inch of her home inside and out with her work.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

This structure among the trees was the result of divine inspiration.

Home of an evil witch famous within southern folklore.

Giant granite rocks standing end-to-end like a train of circus elephants.

The world's largest man-made underground caverns offer unparalleled underwater wonders.

The astonishing collection of an infamous criminologist.