Go inside to really appreciate this 500-year-old technological masterpiece.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

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

Austria's very first and only nuclear power station was completed but never used.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

Swarms of dainty flying insects swarm into the Petaloudes Valley to get busy.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

This lurid German fountain plots the sad course of marriage from dating to death.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

A sprawling Baroque park with 300-year-old hydro-pneumatic waterworks.

The Goose Girl of Göttingen, Germany might well be the most kissed girl in the world.

The world's oldest rose is so tough it survived being bombed in World War II.

The real life town from the Pied Piper of Hamelin has a mechanical puppet show that retells the famous story many times a day.

Striking occult iconography on a medieval German church.

Model Trains and Much More in Hamburg.

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.

Marta Becket's hand-painted theater in the desert.

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Haunting and beautiful trees, doomed to die.

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

The abandoned personal amusement park of the King of Pop.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

The ghost town that ended up on Ebay.