The vast, legendary catacombs hold secrets much stranger than stacked bones.

The oldest Jewish cemetery in Europe survived Hitler's Germany.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

A church of bones, decorated with 40,000 human skeletons.

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

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

Goethe's "Faust" was inspired by these rock formations known as the "Devil's Pulpit" and "Witches' Altar."

Incredible labyrinth of man made caves.

A beautiful maze marks where three countries meet.

The tallest outdoor elevator in Europe rockets passengers on a dizzyingly precarious ride to the top of a mountain.

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

Striking occult iconography on a medieval German church.

Housed in an old church, this hunting museum holds a collection of mythical bird-rabbit creatures.

The patron saint of spinsters grasps a container of dried blood.

An amazing clockwork museum in the Val de Travers holds examples of various prestigious legacies horological history.

The bears of Bern have been a city highlight for over 500 years.

Countless stories attempt to explain Poland's mysterious J-shaped trees.