This magnificent 18th-century hall consists of a maze of nearly a thousand interconnected passages.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

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

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

At just six feet two inches deep, it is said by Guiness and Ripley to be the world’s narrowest freestanding office building.

Traditional 15th century Chinese garden in the middle of Vancouver.

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

9,000 years of carnal history is on display at China's original Museum of Sex.

Massive series of 45 caves and over 51,000 sculptures carved from cliffsides in China.

A natural arch offers panoramic views of Yangshuo's karst hills.

This Tang Dynasty behemoth is the biggest Buddha in the world.

270 million year-old forest of stone.

A fifth-century temple improbably built into the side of a cliff.

The most famous location in China was home to whole dynasties worth of imperial rulers.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

These pretty kitties killed and ate as many as 135 railway workers.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

A display of magnificent stained glass windows is the first exhibit of its kind.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

This historic hotel invented the chocolate brownie.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.