This innovative steam machine was no doubt the most famous of the pioneer locomotives.

When it came to designing his own small office building, the eccentric architect wasn't afraid to show the world what he could do.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

An effigy of a trapped paratrooper dangles from a Normandy church to commemorate one remarkable D-Day event.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

London's only public statue of the much-married monarch adorns the gate to St Bartholomew’s Hospital.

Carved initials which are nearly 500 years old preserve the deposed Queen's presence at Hampton Court Palace.

Ancient snack bar of the Roman Empire re-opened.

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

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

A building so large that it has its own weather.

Electrical pylon in the shape of Disney's beloved mouse.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

A famous songsmith's custom piano, dubbed "High Society," is hidden just out of sight in one of New York's finest hotels.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

This hilarious English intersection is an automotive whirlpool.

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

Eighty million natural history specimens call this gargantuan museum home.

Scattered throughout London are ancient remnants of the city's former bounding wall.

Catacombs turned marketplace.