This small island, a byproduct of 19th-century canal construction, is now home to a charming Japanese garden.

A medieval house adorned with enigmatic carvings, including one of a man displaying his masculine attributes.

Massive puppet-automaton machines created by French artist collective Machines de l’Ile.

A massively oversized measuring tape sculpture sits inside a hidden yard.

This Art Nouveau gate still stands at the former entrance of a 20th-century Spanish writer's colony.

The oldest building in Madrid.

This biographical museum honors the groundbreaking scientist at her birthplace in Warsaw.

This colorful and quirky set of pegasus sculptures celebrate the works of poet Zbigniew Herbert.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

This abandoned gold mine found a second life as a post-apocalyptic film set.

Many miles south of Loch Ness, a similarly-named sea monster stands at the center of a roundabout.

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

Commonly acknowledged as the only public monument to the Devil himself.

The unfinished final resting place of some of Spain's most prominent politicians.

World's largest film studio, where visitors tour the decaying sets that litter the harsh desert environment.

A fortified city, home to a remaining population of five families

The world's largest concentrated solar power plant.