These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

An architectural oddity hides in plain sight on this iconic London bridge.

The 2,000-year-old beam is tucked within the pedestrian entrance to the old London Bridge.

Where condemned pirates met their grisly end at the gallows on the River Thames.

The castle still holds traces of the abandoned Roman fort it was built atop.

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.

This Welsh village gave itself a ridiculous name in a publicity stunt a century ahead of its time.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

The oldest working mechanical clock in the world.

Famously misunderstood wonder of the ancient world

This unique, full-sized copy of the Bayeux Tapestry sports a few modern additions, including underwear.

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

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

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

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

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

This amazing 15th-century mural remained hidden in plain sight for centuries.

The bombed out remains of the old church were kept intact next to the new one, as a reminder of the futility of war.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

The best place in the world to buy tinned fish.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

This unreal Portuguese palace looks as though it's made from a pile of different castles.