Also known as the Square Colosseum, this building is a prime example of fascist-era rationalist architecture.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

This basilica is dedicated to two saints, one of which is known more for his famous quote.

This room of wonder is full of relics, from knights in armor to rare works of art.

A 15th-century monumental Latin inscription on this house celebrates Lorenzo Manilio's love for Rome.

This Italian stadium makes liberal use of fascist statuary to evoke classical sporting arenas.

A massive marble foot is tucked away in a small alley near the Pantheon.

This curious, round temple is the oldest still-standing marble building in Rome.

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

A Nesting Doll of Churches.

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

This Neapolitan exhibition hall grants weird and wonderful insight into the intricacies of human biology.

An unusual "skull with ears" sits in the crypt of this small church tucked away at the end of a narrow alley.

An eerie, little-known Neapolitan museum filled with preserved human remains.

The names Lúthien and Beren can be found inscribed on the shared grave of the famous writer and his beloved wife and muse.

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

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

A former steam-powered mill from the 1800s is now an industrial park with a giant steel dragon slide.

This cemetery features modernist statues as strange as its name.

A stately palace has been converted into the world's largest cannabis museum.

Mountain where Jesus was first tempted by the Devil.

A memorial to the murdered Jews of Kaunas.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

Abstract dinosaur models in London.