A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

A museum dedicated to exhibiting remarkable outsider art.

The ancient tomb acts as a calendar that keeps perfect time.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

A beautiful geyser under environmental threat.

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

The first declared National Monument in the United States.

Elevated freight railway turned wildly successful urban park.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

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

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Scattered throughout London are ancient remnants of the city's former bounding wall.

Hear the quietest sound from across the dome.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

San Francisco's newly reopened hands-on science museum.

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

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.