Walk or bike along a narrow strip of Belgium sandwiched by German territory.

An abandoned suspension bridge on the Falkland Islands is crumbling into the water.

This amazingly preserved Gold Rush town is a historian's dream.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

The ghostly remains of what was once the world's richest copper mine.

A lawless town deep in Death Valley was famous for its riches and death rate.

The true age of this ancient stone circle is unknown, but its stunning vista isn't in question.

Possibly the oldest of Britain's ancient henges is also one of its most stark.

A hillbilly theme park that proved so unpopular the land wouldn't even sell on eBay after it closed.

A Saint Nicholas-themed ghost town in the Mojave desert.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

An aviation relic that made coast-to-coast travel possible.

Eat your Big Mac in a DC-3.

The U.S. Navy's last diesel-electric submarine rests half-submerged in the middle of Portland.

A very big rock just plopped down in the New England woods.

The narrow mountain road that carves a path between Florence and Victor is tied to ghost towns and ghost stories.

The largest self-built castle in the U.S., six decades in the making.

This super steep hike ascends 2,000 feet in less than a mile.

At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

This interpretive path lets you get up close and personal with dinosaur bones.

With only one flight in and out a week, the unfenced runway at this small island's airport transforms into a seaside park for locals and visitors.

Double spiral staircases are not unheard of, but they are very rare.