Learn about Iceland's hidden folk at this school dedicated to the study of elves.

A winding, blood-red tunnel of hardened lava navigable by foot.

This elegant arc of a waterfall marks a religious turning point.

Iceland's "Smoky Valley" is a beautiful river that is shrouded in a constant cover of steam clouds.

Climb right into the heart of this colorful Iceland volcano.

The most powerful waterfall in all of Europe.

This modern monument to pagan belief looks like it was transported straight from ancient times.

Walk in the footsteps of the gods and straddle two tectonic plates.

Rising from the sea like a stone monster.

Staves, storm-calling, and of course, necropants.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Medicinal spa created with the discharge from a geothermal energy plant.

The final resting place of an iconic drag performer is decorated with pearls and hot-pink lipstick.

The likeness of the Baltimore music icon was unveiled in time for the anniversary of his Senate hearings on music censorship.

One of the oldest anatomical theaters in the U.S. still in use was once the site of an infamous cadaver riot.

Step into a pastel time capsule where candy is truly dandy.

Barcelona's historic 19th-century sewers, whose foundations were laid in medieval times, are open to the public for exploring.

Mountain where Jesus was first tempted by the Devil.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

This cemetery features modernist statues as strange as its name.

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

This semi-secret storybook hedge maze is also the oldest garden in the city.

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

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