If you visit Santa's village, you can get your passport stamped to show you crossed into the Arctic Circle.

Roughly 17 million letters to Santa have found their way to this Arctic Circle post office.

Finnish lake, and scene of an infamous murder mystery.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

This big empty pig is a nostalgic throwback to mid-20th-century Texas barbecue.

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.

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

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

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

The oldest funicular in Lithuania has been climbing this steep hill since 1931.

"Only the dead get off at Kymlinge."

An emerald-green grotto just a short trip from Austin.

A massive Montreal stadium that has seen nothing but trouble since its inception.

Every year, the colorful murals of Montreal get a complete makeover.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

A replica of the home of a famous fictional troll family.

A cathedral resurrected from the ashes of one of Europe's greatest urban fires.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This rusting remnant of the local herring industry is being given a second life.

This stunning concert hall has become a symbol of Iceland's national recovery.

Three columns of volcanic rock shoot out of the ocean.

This wrecked airplane has been sitting on a black sand beach since the 1970s.

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