Raging waters have created a strange geological site that looks like something off of a progressive rock album cover.

This monument memorializes a violent massacre where colonial police killed 50 striking dockworkers.

Known as the Sistine Chapel of Egypt, this tomb houses some of the most well-preserved paintings in Egypt.

The most biologically diverse protected area in Africa is also the most dangerous.

One of the city's few vendors selling the Sierra Norte's ancestral beverage lies within a hidden farmers market.

This trio of bronze giants celebrate the influential trip to Britain that led to Botswana's independence.

The abstract sandstone rock formations at this Algerian national park are rich with prehistoric art.

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

An artsy hidden staircase leads to breathtaking views of San Francisco.

One of Canada's most incredible rare book collections holds hundreds of thousands of gorgeous tomes that the general public can touch.

A preposterously luxurious hotel with gold-plated iPads, Rolls Royce chauffeurs, and a staff that trains by watching "Downton Abbey."

This famous city eluded concrete detection until the early 2000's.

Within the Saudi Arabian desert lies a 2,000-year-old ghost town made of stone and mud.

These gnarly desert trees produce the prized aromatic resin traded along the ancient incense trail.

A shrine on the shores of the Tigris.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

This vintage train once gave new meaning to “swimming upstream.”

A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.

A high school astronomy enthusiast designed this model of our solar system to be traversed on foot.

Originally a brothel during the Klondike Gold Rush, this bar once used dolls to denote when ladies were working.

While not recognized by Guinness, this chocolate waterfall is likely to be the world's largest.

Upside-down trees serve as natural flower pots in this hanging garden of Alaska.

This abandoned prison castle has become an imposing gallery of graffiti art.

This splendid Versailles-inspired mansion has the largest French-style formal gardens in North America.