A museum in the building where Nazi Germany signed its surrender tells the story of World War II from the Soviet perspective.

This magnificent church allows travelers along one of Germany's busiest roadways a chance to rest and reflect.

This Parisian café sticks almost exclusively to an ethos of reuse.

Elevated freight railway turned wildly successful urban park.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

Remnants of the Nazis' occupation of Denmark linger along the sand.

A market built atop boats is one of the few floating holiday markets in Europe.

This former Soviet military base has over 10 original aircraft and an enormous amount of memorabilia on display.

This spectacular track has run continuously since 1882.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

This magnificent 18th-century hall consists of a maze of nearly a thousand interconnected passages.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

Beneath a Virginia City bar is the entrance to an abandoned gold mine.