This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

The "Prussian Versailles" that is as glorious today as when it was built.

A quaint Russian village in the middle of a German metropolis.

This German version of Universal Studios holds a vault of treasures from the NeverEnding Story.

The prototype for all Nazi concentration camps.

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

The most visited, and possibly most controversial, museum in Germany.

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

A "miracle" that seems to produce more holy fistfights than holy revelations.

Mysterious lost empire of the Silk Road.

Perched above the bustling town of Kerak is a sprawling, ruinous castle that has witnessed nearly a millennia of Levantine history.

This exceptionally well-preserved ancient marvel also houses a small museum dedicated to Jordanian folk tradition.

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.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

A network of ancient Egyptian tombs built into the cliff face along the Nile.

The largest known Ancient Egyptian obelisk.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

This legendary city has been a tourist attraction for centuries.

A trove of ridiculously valuable prints and manuscripts under one roof.

CERN's beautiful, bending sculpture is a tribute to the spread of knowledge.

One of the longest wooden benches in the world snakes around Geneva's Treille Promenade.