From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

Climb inside an iron crystal magnified 165 billion times its normal size.

The library's graceful rotunda is like a bibliophile's temple.

20-foot tall lamp mumbles Swedish to celebrate the holidays.

Swedish mice can dine at the Nuts of Life restaurant or take a date to the amousement park.

Swedish skyscraper with a 90° twist.

A golden plaque marks the site of the mysterious unsolved assassination of the former Swedish prime minister.

It houses the remains of a 17th-century version of the Titanic.

A museum dedicated to the history and exploration of both popular music and science fiction.

A public urinal so pretty, it was declared a national monument.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

Mountain where Jesus was first tempted by the Devil.

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.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

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

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

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

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

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Iceland's largest geothermal mud pool is a little bit haunted and a little bit dangerous.

The most powerful waterfall in all of Europe.

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

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