Rising from the sea like a stone monster.

Instead of solid circles, the stoplights in this northern Icelandic town have glowing red hearts.

The most powerful waterfall in all of Europe.

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

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

On La Gomera, "Silbadors" communicate in a 4,000-word language of whistles.

According to the Guanches, the aboriginal people of the Canary Islands, the king of evil lives inside this volcano.

This unique rock formation is quite the local celebrity, although one day it may come crashing down.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

With a facade that measures just 107 centimeters, this five-story building is one of the skinniest in Europe.

Vibrant street art created with mixed media.

This magnificent castle grew from a small Moorish fortress, and reportedly inspired two iconic Disney castles.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

This small cemetery and its chapel are located in the middle of a traffic circle.

The small Spanish town that played an important role in a human's first steps on the moon.

This influential Renaissance-era library was once the haunt of kings and monks.

A breathtaking and biodiverse wilderness in the mountain setting of Ernest Hemingway's "For Whom the Bell Tolls."

This species of wild goat stars in witchy legends and frolics among the park's eerie rock formations.

A magnificent, long-abandoned castle built in the wake of the reconquest of Spain.

Once the grandest synagogue in medieval Spain, it now stands as a memorial of the 15th-century Jewish exile.

Originally used to sell brandy, the bull-shaped billboard became an iconic symbol of Spain.

This small chapel is built of human bones and decorated with a golden skeleton.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.