This blowhole is supposedly caused by a trapped monster.

This industrial area was the dumping ground for massive amounts of trash, some of which washes up as tiny bits of sea glass.

Race through the maze, get your name on the sign.

A giant poultry statue immortalizes one of Alaska's more humorous town names.

The northernmost truck stop in the United States.

The stickered marker pinpoints where the only maintained road in the United States crosses into the polar region.

This gravelly, dangerous highway is the only road in the United States that leads to the Arctic Ocean.

Considered by many to be one of the most dangerous highways in Alaska.

Buy your friend a drink or staple some cash to the wall for the next guy at the Salty Dawg Saloon.

Iceland's tribute to its thankless civil servants.

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

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

The most powerful waterfall in all of Europe.

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

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

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

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.

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

The corpse bride of Portugal.

The world's largest wooden structure.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

The world's oldest bookshop still in operation.