This mosaic-lined medieval church was built by the world's first admiral and still holds mass in ancient Greek.

Behind medieval walls in a corner of bustling Palermo is a breathtaking former mosque once inhabited by a wolf-taming hermit.

Every inch of this chapel is covered in craftsmanship from across the world.

Haunting graffiti left by prisoners of the Spanish Inquisition.

Contrary to popular belief, this memorial does not actually claim to mark the bluesman's grave.

A New Hampshire grave with a grudge.

A spherical "micro-nation" in the heart of Vienna.

The resting place for anonymous victims of the Danube's dark waters.

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

The beautiful baroque library of the Hapsburg empire.