A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

This colossal ancient sculpture of the monstrous Aztec rain god has a literally stormy history.

The most complete statue of this Aztec god sits a top a throne carved with images of hallucinogenic plants.

This strange sculpture of a menacing skull surrounded by sun rays was discovered at the foot of the Pyramid of the Sun.

This ancient jade mask depicting the Zapotec bat god was found in the ruins of the pyramids of Monte Alban.

A monument to Lenin has been transformed into a statue of everyone's favorite black-helmeted, fool-choking Sith Lord.

The largest catacomb system in the world.

The legendary cliffside castle of three-time Voivode of Wallachia, Vlad the Impaler.

A giant portrait of an ancient king looms over the river.

This massive underground salt mine now holds a sci-fi theme park in its depths.

Some call this eerie forest of crooked trees the "Bermuda Triangle of Romania."

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.