This German monument honors the so-called "Prince of Mathematicians."

Striking occult iconography on a medieval German church.

An extraordinary mechanical calculator designed by the mathematician and philosopher Gottfried Leibniz.

A kindergarten shaped like a cat with a tail that's a slide.

This beautiful 19th-century temple stands atop the ruins of its predecessor.

A carved grave marker from the 2nd century is mounted in the alcove wall of this Bavarian church.

A two-inch thick solid brass rod that extends an astounding one kilometer straight into the earth.

Electricity pylon standing in the middle of a shelter.

At this cemetery, artists are invited to design their own gravestones.

This German museum is devoted to all aspects of grave culture from headstones to coffins.

Carved fountains poignantly placed in parks and in front of special monuments.

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

A German apartment building hosting as many trees as human occupants.

The last Tsar of Russia constructed this private church just so he could attend services when visiting his wife's hometown.

Crop circles inspired this whimsical garden in Germany.

This historic funicular system combines the old with the new while offering delightful views over the surrounding valley.

It's good luck to be mocked by this monkey.

This statue once earned the distinction as one of the "Three Major Disappointments of the World."

Atop the former site of a historic bakery sit two stone tributes to Verona's contribution to traditional Italian baking.

A whale rib was used to advertise the store by the arch that offered exotic goods from far away.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

The secret medieval communication system will whisk your words above the noise of the crowd.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

This poignant art installation raises awareness of violence against women.