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

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

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

The most visited, and possibly most controversial, museum in Germany.

A fascinating insight into daily life in the Eastern Bloc.

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.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

Home to three historic ships from the age of Vikings.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

The design of this beautifully crafted building was inspired by Norwegian glaciers.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

A fairytale island floats in the middle of Italy's little-known Lake Orta.

Over 3km of caverns and caves at the Switzerland-France border contain the largest underground river in Central Europe.

The university library shaped like a giant piece of Swiss cheese.

Swiss vineyards in a UNESCO heritage site.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

This eclectic architectural gem played witness to Zurich’s colonial past.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

This simple apartment may have inspired some of the most important theories in the history of science.

See the rare bloom of the "Queen of the Night" cactus at one of the world's largest succulent collections.