For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

A lush indoor jungle fills this bustling Madrid transportation hub.

An ancient Egyptian temple in the middle of Madrid, Spain.

The location of this historic castle was inspired by a donkey.

Where the sleeping monsters of Scotland's oil industry are left to rust.

A pagan tradition of draping trees with rags eerily lives on.

A beautiful Victorian statue shows France's enduring love of the rhinoceros.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

America's only nuclear missile silo open to the public.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

Beautiful Gothic-inspired lighthouse stands out among the run-of-the-mill striped fare on Bodies Island.

An out-of-place slice of France, smack in the middle of Shanghai.

Once the home of a hermetic monk, this cave now houses a small church.

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

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

The king of U.S. high points towers over every other peak on the continent.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.