The last bastion of Roman presence north of the Alps looms over a German town.

Tiny castle in the middle of the Rhine made you pay to pass.

Legendary site where an evil bishop was devoured by rodents.

A tiny chapel clings to a precipice above Germany’s gemstone capital.

Cat art as far as the eye can see.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

The future of roadside attractions is this sci-fi soda mecca that is home to a 66-foot tall neon pop bottle.

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

One of several skulls claiming to belong to the beheaded St. John the Baptist is on display at this Roman church.

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

An alchemist's “magic door” stands in the middle of a Roman park.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.