The yawning maw of this pagan visage is said to bite off the hands of liars.

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 copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

Paris' fabled purveyor of exotic taxidermy and natural history curios.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

France's national museum of scientific and industrial instruments.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

France's most famous cemetery, with some of its most curious tombs.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

Where Venice's gondolas go for a tune-up.

The only museum with its curator—and her pets—buried inside.

The marble facade hides a little-known medical museum with early surgical instruments and rare copies of canonical texts.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

The small peaceful island off the Venice tourist circuit is where the city began more than 1,500 years ago.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.