A beloved tribute to the Fab Four and the freedoms they inspired.

A huge communist-era propaganda monument and mural that offers stunning views of the Mongolian capital.

Dinosaur eggs were first discovered at these fiery red cliffs.

One of the most photographed locations in the entire city.

An abandoned Byzantine fortress and notorious prison.

Bridge that died in war and was resurected.

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

Park in the Canary Islands renowned for white dunes that contrast with the turquoise waters of the Atlantic.

A large collection of solar and night-time telescopes dot a small area on the Teide mountain range.

Nature puts on a spectacular show at this blowhole on the eastern side of Gran Canaria.

It's been nearly a century since this volcano, the tallest mountain in Equatorial Guinea, erupted.

This village surrounded by breathtaking waterfalls is one of the wettest places on earth.

During the dry season, this white-sand beach hosts thousands of breeding butterflies.

The largest Christian church in the country is a complicated symbol of Spanish colonialism.

Originally planted by the ancient Carthaginians, this sprawling palm grove is one of the largest in the world.

Abandoned tunnels dug for the once-thriving sea salt industry on the coast of southern Spain.

This 11th-century fortress is now the seat of Aragon’s state legislature.

Designed in the Romanesque style, this structure was once a fortress monastery.

Defy gravity at this fascinating Pyrenees overlook platform.

A place steeped in history that may be best known as the set of a 1960 film.

This tiny village in Catalonia reinvented itself as a street-art destination.

A signal indicates the entrance to this alley, rumored to be a meeting place for witches.

Few symbols capture the spirit of Catalonia more vividly than its tradition of human towers.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.