An offbeat angle on the ocean viewed through an antiquated lens.

The gigantic preserved heart of a champion racehorse.

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

Khmer Rouge's high security prison.

One part local history, 99 parts gruesome haunted house.

A Looff creation in Santa Monica best described as “a California-Byzantine-Moorish-style fantasy.”

The home of the Dead Sea Scrolls is an abstract modernist dream.

The hidden jewel of Disneyland: a members only playground for the Disney elite.

An atomic bomb-proof strongbox protects the U.S. Constitution from terrorists and thieves.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

These ominous lava formations were said to be an entrance to the netherworld so of course they inspired a famous metal band.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

The first life claimed by this record-breaking peak wasn't lost to exposure or a fall, but rather lightning.

The king of U.S. high points towers over every other peak on the continent.

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

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

Home to three historic ships from the age of Vikings.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

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

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

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

This exclusive resort has completely covered a tiny Balkan island in a 5-star warren of guest rooms.