This abandoned lighthouse looks like a rusting oil rig, but has managed to survive a number of storms.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

This hidden stream beneath Indianapolis makes an appearance in the best-selling novel "Underground Airlines."

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

An impressive collection of over 50,000 minerals including moon rock from the Apollo 17 mission.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

This unique historical monument features large concrete spheres designed to resemble fallen stars.

This massive geographical sculpture is so subtle, it's possible to pass by it without noticing.

These strange large stones served as a campsite and lookout post for generations of Native Americans.

No one's quite sure why there's a metal megaphone bolted on two rocks in the middle of the Mojave Desert.

Site of the greatest known waterfall that ever existed.

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.

Nuclear waste dump site now an environmental sanctuary.

An arcade packed with a rotating collection of unique independent video games.

A theme park attraction designed to turn your children into LARPers.

This erect, phallic geological spire wasn't always named so domestically.

The ravine where Jesse James supposedly performed an impossible jump to evade capture.

A nude beach alongside a washed-out road.

Steep canyon walls hide a forested oasis in the West Texas desert.

Natural rock water slides hidden in the remote forests of northern Idaho.

Eight rare Corvettes are swallowed up by a sinkhole in Kentucky's National Corvette Museum.

Gorgeous cave resemble a winter wonderland.

The remains of the dam that unleashed a 15-foot wall of water on Denver.

A small peaceful park and waterfall tucked amid the urban grind of Midtown Manhattan.