Even with only two residents and one building, this tiny Illinois town is famous for its burgers.

What may be America's largest classic video game arcade lurks inconspicuously in a Chicago suburb.

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

A hollow cement depiction of time's inexorable effect on the human body.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

River pirates, murderous bandits, and serial killers used this Illinois cave as their debauched hideout.

New fungal and bacterial species call this deadly lake home.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

The shell of a medieval fortress offers commanding views of the area it once protected.

A remarkably well preserved tower dating all the way back to the Iron Age.

Massive crater in central Oregon.

This lake in the Cascades lives up to its name, disappearing down a hole every spring.

This frequently-photographed waterfall takes only a short hike to visit.

Train debris from the deadliest avalanche in United States history can still be found in the ravine where so many perished.

Twin Peaks' real life Double R Diner has been restored to its damn fine television look.

Shoreline strewn with the remains of ghostly fallen trees.

You can see three Irish counties from this Neolithic hillside fort, once the seat of the Kingdom of Ailech.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

Once an ambitious nature spa, these forest ruins now provide a serene monument to failure.

Stroll through a wonderland of stupendous moss-covered trees.

When this test site was abandoned, they didn't even bother to take the rocket with them.