This abandoned bridge to nowhere stands secluded in the woods of a Cleveland suburb.

Enormous sandstone towers loom within a Czech forest.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

An architect transformed this abandoned cement factory into his castle-like workshop.

A modernist landscape of water and sci-fi concrete.

This medieval sanctuary's tree-framed door looks like a portal to a mythical realm.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

This vertical pinnacle in China was the inspiration for the floating mountains in the movie “Avatar.”

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

Rare recess caves fill this unbelievably beautiful Ohio park.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

This charmingly homemade amusement park has been growing for 40 years.

This isolated Japanese mountain village untouched by time showcases unique and stunning traditional architecture.

This architectural stunner is one of the few surviving Egyptian Revival theaters in the U.S.

Three abandoned missile silos are hiding in plain sight behind a suburban development in Maryland.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

Though its branches are painted bright colors by generations of locals, the tree is said to be a haunted portal to hell.

The first park built over a freeway is a brutalist masterwork.

The only Frank Lloyd Wright-designed structure in the architect's hometown.

The fairy tale castle of the "fairy-tale king."

The site where a nuclear bomb was lowered over 8,000 feet underground and detonated as an experiment in natural gas extraction.

The pits used to load the nuclear bombs onto the aircraft that dropped them over Hiroshima and Nagasaki at the end of World War II.

What was once the largest NFL stadium.