A fortress built to pacify local uprising that had a stint as a Nazi concentration camp before becoming a five-star hotel.

The abandoned palace stands as a wounded but proud beacon of Afghan hope.

A moving memorial to the fallen and missing from WWI trenches.

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

The prototype for all Nazi concentration camps.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Possibly the world's largest hourglass only needs to be reset every New Year's Eve.

This replica of the Greek structure is in the heart of Nashville.

The secret city built by the Manhattan Project.

Moonbows over Kentucky.

These strikingly barren, rolling red hills were caused by bad farming practices.

A mysterious lake provides fresh water without any source, somehow restoring itself from atop its mountaintop perch.

Site of the first official transatlantic wireless communications.

Seat of the Duke and Duchess of Devonshire for centuries.

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.

Gladiators battle and chariots race daily in the ruins of a once-great Roman city.

What was once supposed to be the symbol of a shining Afghan future is now a bombed-out ruin.

This incredible stone temple is a monument to death, victory, and fantasy architecture.

Monument to a suicide protesting the Soviet invasion.

Steadily reminding Czechia of its past.

Ruins of a German Castle on top of a towering stone pillar.