Holy Grotto of Montserrat Monastery holds one of Europe's mysterious black Madonnas.

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

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

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

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

Commonly acknowledged as the only public monument to the Devil himself.

The remains of the second-oldest zoo in Europe can be seen within these library gardens.

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.

This lucky bronze frog was gifted to Madrid by a casino.

One of Madrid's oldest trees, with a long and colorful history, resides in El Retiro Park.

This historic fountain is a favorite neighborhood meeting point.

This little sun pays homage to a massive gate that once stood at this location.

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

This 700-year-old Cyprus castle is the birthplace of the world's oldest wine, said to be toasted by Richard the Lionheart at his wedding.

The ancient mosaics here are considered among the finest in the world, and serve as a stunning record of Greco-Roman daily life.

An ancient necropolis of magnificent tombs.

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

A blacklight journey through a celestial art exhibit.

A museum dedicated to the alleged Roswell Incident.

A wonderful collection of all things Oz is nestled in the heart of Kansas.

Enjoy a tour of oddities and makeshift monsters at this souvenir store with an offbeat sense of humor.

It's big, it's a ball, and it's made of twine—the world's largest of its kind.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.