A museum dedicated to the centuries-old cave dwellings that housed marginalized communities on the outskirts of the former capital of Muslim Spain.

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

This small, but beautiful waterfall has attracted visits from artists, composers, and two United States presidents.

Nicknamed the 'Minnehaha Bunny,' this bronze sculpture is nine feet long and weighs 1,500 pounds.

This cemetery features modernist statues as strange as its name.

Catalonia Tradition: Beating the hollow Christmas log until it defecates in your fireplace.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

The world's oldest bookshop still in operation.

The world's largest wooden structure.

This abandoned five-star hotel is now a five-star urban exploration destination.

Legend has it the lovelorn tears of a princess and a shepherd boy formed the blue and green twin lakes in the Azores archipelago.

Chicago's museum dedicated to the history of bondage and fetishism is more textbook than titillation.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

Small and slightly hidden, the American Writers Museum is preserving the legacy of America's finest authors.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

Definitely not a clown bar.

A 115-year-old restored German dining hall awaits those who venture beneath the Minnesota State Capitol.

Opened in 1956, the first modern indoor shopping mall in the world was inspired by the shopping arcades found in European cities.

Vice President Humphrey's final resting place is tucked away in this cemetery along with a few other notable figures.

For posterity, a singular achievement: 3,780 hours of dancing.