Two mammoth statues inspired by equally tall tales lure tourists to this roadside attraction.

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

This museum looks at the history of one of America's most famous prisons and most beloved albums.

A man-made island in scenic San Francisco Bay.

The highest dunes in California are the most likely place in the area to hear the Singing Sands.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

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

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

New Zealand's epic shrine to all things puzzling.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

This strange geological landscape erupts with sudden bursts of water.

Some of the clearest water anywhere in the world.

A perfect turquoise lake colored with glacier dust.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

Tubing through a cave lit with glowworms is a magical underground experience.

This beautiful, historic church looks like something out of a simpler past.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

The oldest hall in Iceland was written of in the Sagas and features a centuries-old escape tunnel.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

Climb right into the heart of this colorful Iceland volcano.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

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

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

An abstract monument to a symphonic composer.