Grand Cayman is home to a colorful sculpture garden filled with giant concrete animals.

A once-glowing grotto at the bottom of Waikapalae Wet Cave.

Submerged lava formations create incredible waterworks.

This former luxury resort in Kaua'i is now an abandoned relic.

This ruined fort and statue are a testament to the last king of Kaua‘i’s savvy diplomacy skills, which briefly brought Russians to Hawai‘i.

This blowhole is supposedly caused by a trapped monster.

A prehistoric landscape hidden in the cliffs of Maha'ulepu.

This half-finished "city of toys" was almost Italy's own Las Vegas.

A dilapidated psychiatric facility on the outskirts of Milan where electroconvulsive therapy was developed and Napoleon once lived.

A once-luxurious, now abandoned hotel in the Italian Alps.

The Sighignola summit on the Swiss border offers views so breathtaking it's been named one of the most beautiful places in Italy.

One man has spent decades faithfully constructing this unique brick and cinderblock castle.

All that's left of the quintessential "cabin in the woods."

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.

The largest Star Wars collection in the world is its own galaxy of collectibles.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

This abandoned boat was left in place thanks to its rotting beauty.

This print shop boasts one of the largest pinball arcades in San Francisco.

Orr Park's dead trees have been carved into a menagerie of whimsical visages.

Continuing the tradition of the dime museum in style.

Enormous lake at the bottom of a unique cave system.

This simple, broken column marks the final resting place of one of America's most famous explorers.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.