Macabre museum devoted to historical Viennese murders.

A surreal statue honoring Prague's favorite literary son.

A saintly relic hidden in a Prague church basement.

Roman politician Herodes Atticus built this nymphaeum to honor his wife, whom he may have murdered.

This small, ancient Roman temple was once a church dedicated to the patron saint of penitents.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

The final resting place of the poets Shelley and Keats.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

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