One of the most important yet well-hidden museums dedicated to the history of medicine.

A hospital where antique dolls are given new life.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

2300-year-old Roman road connecting the empire.

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

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

Architectureal fantasy quarter of Rome.

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."

Rome's semi-secret peephole vista is also a former Crusader stronghold.

This antique clock once gave the most accurate time in the area.

The Lund University's former gym houses a museum focusing on the creative process of art.

The standard measure of Lagom, a measure of what is enough.

The indecision over what to place in this square was immortalized with a plaque.

Home to 200 plaster casts of Scandinavian proboscises.

This Swedish astronomical clock was in storage for almost a century before its glorious workings were put on display once more.

Art and armour fill every inch of this rich kid's Italian villa.

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

This museum is rotten with a century of wax medical deformities.

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

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

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

An ordinary lamppost situated in the middle of Cambridge has an unusual moniker and history.

This tree was grafted from the actual tree that led Isaac Newton to ponder the theory of gravity.