The world's smallest drawbridge.

A cheeky architectural easter egg.

This hanging crocodile is thought to be the "dragon" that once plagued a Czech city.

Mummified monks and the accidentally interred, in a 17th-century crypt.

A church of bones, decorated with 40,000 human skeletons.

This Buddhist temple is home to the graves of the Japanese national legends, the 47 Ronin.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

This historic recreationist school churns out warriors that may very well have had a fighting chance in Rome's pits of the day.

Meet the world's longest tapeworm in a collection that really gets under your skin.

Erotic art covers the walls of the largest ancient pleasure palace.

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

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

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

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

Secret refuge and museum of the Duke of Florence.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

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

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

Medieval torture techniques with a modern conscience.

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

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

The largest and most famous wax anatomical collection anywhere in the world.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Thousands of well-dressed mummies below a monastery.