A small cell adjacent to this church was once the bedroom for a renowned saint.

The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

This hydrochronometer was invented by a Dominican monk and is a prime feature in this garden.

Ancient ruins hidden underneath a modern luxury hotel.

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

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.

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

Prehistoric sandstone menhir with Early Bronze Age cup and ring markings, also known as Robin Hood's Stone.

The longest hedge maze in the world.

A student driver's nightmare.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A 19th-century shrine covered with prosthetic body parts as votive offerings.

Storyville was New Orleans' historic red light district and hotbed of jazz music, sometimes referred to simply as "The District."

The name of this suspended sculpture is Latin for "high horse," which is exactly what it is.

A unique waterfall that some believe attracts the fairfolk.

Abandoned ship reimagined as a street art canvas.

The decaying ruins of Wales' first asylum for the mentally ill.

This pedestrian walkway cuts through a cemetery and over several burial vaults.

One of the few surviving street funiculars in the world.

A former fisherman's hut deemed too small for habitation is now a delightful tourist draw.

After years of slow decline, a derelict Gothic castle is now being restored to life.

Picturesque ruins once held off mighty armies.