The telescope that discovered Neptune.

A statue honors the local legend that the devil helped build St. Mary's church after being tricked into thinking it was going to be a wine bar.

Go surfing on this urban wave, "hacked" by local surfers.

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

Tiny memorials honor individual victims of the Holocaust.

The footprint of a frustrated devil in Munich's Cathedral.

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

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

This remarkable parking garage in Darmstadt has lived several lives and still contains remnants of its World War I past.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

A stunning Catholic cathedral built by a curve-loving communist in Brazil’s newly created capital.

105-foot wide giant metallic flower blooms anew every day in the heart of Buenos Aires.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

You have to know where to look in this rather ordinary-looking square to find hints of its past as a dissidents' cemetery.

A bright little alley in La Boca is a part of tango history.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

Museum precariously perched on a massive yellow pillar.

Solitary monument dedicated to the beauty of nature.

A subterranean display of public art and architecture.

The prototype for all Nazi concentration camps.

According to legend a man pooped out the window of this tower to prove that it was straight.