Travel deep inside of Europe's second largest glacier in the world's largest man-made ice cave.

A trio of hidden hot tubs takes advantage of Iceland's natural geothermal vents.

This hobbit-y little hot spring may be the oldest spring used by humans in all of Iceland.

Surrounded by ash fields in Iceland, an impossibly verdant valley looks like something out of a fairytale.

These ominous lava formations were said to be an entrance to the netherworld so of course they inspired a famous metal band.

The oldest (maybe) swimming pool in Iceland is a stunning oasis built into the side of a lush hill.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

A little-visited waterfall in an otherworldly landscape.

Every summer local children form "pysja patrols" to save young birds that have wandered from their nests.

The most powerful waterfall in all of Europe.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

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.

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

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

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

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.

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

This massive wooden building contains a giant Buddha, healing pillars, and tame deer wandering the grounds.