This century-old roadside attraction is full of bizarre rock formations.

A Neolithic burial site erected around 3000 BC.

This peculiar museum offers hands-on interaction with seemingly intangible principles of mathematics.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

A school-themed restaurant where gastronomy is the core curriculum.

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

The Pope’s secret escape route.

This delightful little museum is dedicated to only one thing: pasta.

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

Jesus' footprints and the first catacombs in the world.

2300-year-old Roman road connecting the empire.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

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

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

Go inside to really appreciate this 500-year-old technological masterpiece.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

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

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

A whale rib was used to advertise the store by the arch that offered exotic goods from far away.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

One of the world’s smallest bars, just 13 square feet, is brimming with speakeasy flair.

Before there were doorbells this bronze ear was installed for visitors to announce their arrival.

Swarovski's museum/theme park is a fake diamond fantasia overlooked by a giant.

Where beer lovers can literally immerse themselves in beer.