A series of abstract, silly sculptures represent the works of a great modern classical composer.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

A pair of gigantic baby heads greet passengers at Atocha Station.

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

This modest lottery shop draws hopefuls all year long, but come Christmas season, lines wrap around the block.

A “floating horse” hangs menacingly over the heads of passersby.

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

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

The discovery of these rare, ancient artifacts led to the creation of a new museum.

The effect of this ancient form of image projection situated atop an 11th century Moorish palace is thrilling.

The Roman city was the birthplace of various emperors and is home to one of the empire's most impressive architectural feats.

Its appearance in "Game of Thrones" may spur on the long-awaited restoration of this medieval shipyard.

The Binghamton area is home to six of the last remaining hand-carved vintage carousels.

A gazebo that inspired the fifth episode of the "Twilight Zone" still stands in the creator's hometown

Walk down an otherwise nondescript alley near Washington Square West in South Philly and find yourself in a vivid, immersive mosaic wonderland.

A daily replay of the experiment that proved the rotation of the Earth.

Yo, Adrian!

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

A unique shopping and dining park created from old shipping containers and filled with local businesses.

A surreal, interdimensional shopping center and portal to another universe by Meow Wolf.

This former coal gasification plant found a curious second life as a popular public park.