A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.

The Pope’s secret escape route.

135 bronze medallions mark a French meridian line which once rivaled the hotshot Greenwich timeline.

This demon atop the Notre-Dame de Paris looks utterly bored.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

The oldest operating pharmacy in the world features 800-year-old recipes.

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

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

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

Some say this medieval church is where the poet Dante married his wife and also met the love of his life.

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

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

Breathtaking and huge 430 year old maps of Italy.

The ruins of the "20-year town" lay out among the mountains of Alberta.

Fossils, railroads, and waterfalls!

In 1909, the steepest and most difficult piece of track on the Canadian Pacific Railway was replaced with a series of spiralling tunnels cut into the mountains.

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

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

Ancient snack bar of the Roman Empire re-opened.

The walls and streets of the ancient city are peppered with penises.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

This ancient market is often referred to as the oldest shopping mall in the world.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

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