A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

A historical puzzle lies at the origins of this structure.

In the hometown of the Catholic saint and Nobel Peace Prize winner, a memorial dedicated to her legacy.

Depending on the region's rainfall, this church may be partially submerged.

This fortress dates back to the 6th century and is also the site of a controversial abandoned restoration project.

Once the fallout shelter of a dictator, this sprawling bunker is now a combined history museum and contemporary art gallery.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

The most visited, and possibly most controversial, museum in Germany.

A mocking tribute to the past and modern leadership of Prague.