Translating as "The Jump of the Girlfriend," this stunning waterfall has a tragic legend behind it.

This "flat geyser" bubbles up out of the ground periodically like a disappearing river.

A darkly erotic open-air statuary in Catalonia.

Blue-green pools and smooth stones comprise one of Spain’s most idyllic hidden wonders.

An exact replica of a colossal Olmec head sits atop a pyramid within a Madrid traffic circle.

This magical space partly designed by Antoni Gaudi is one of the best examples of romantic gardening in the Mediterranean.

One of the world's oldest universities houses an incredible collection of anatomical models, mummified body parts, and human bones.

A completely underwater art museum sends a stark message about humans' impact on the environment.

A Franco-era dam flooded (almost) everyone out of this centuries-old Aragonese town.

Considered the birthplace of the Copper Age and Bronze Age, the river is tinted red from 5,000 years of mining.

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

This house's itty bitty size means no humans allowed.

A Spanish forest is filled with mysterious stone carvings.

One of Europe's largest supercomputers is housed inside of a disused chapel.

The morbid items in this small and hidden museum are not for the weak stomached.

At the foot of a waterfall lies a peaceful swimming lagoon and evidence of over 60,000 years of human habitation.

Turntable anonymously received orphans, alms, and groceries.

Bacteria and algae give the salty water its bubblegum hue.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

An eclectic collection of thousands of items owned by the sculptor Frederic Marès.

This home designed for chocolate magnate Antoni Amatller is an exquisite treasure-box of Catalan Modernism.

A cemetery in Barcelona's Poblenou district is home to this touching funerary statue, which depicts death in the form of a winged skeleton.

A stately palace has been converted into the world's largest cannabis museum.

This cemetery features modernist statues as strange as its name.