Buildings from the fictional planet of Tatooine still litter the Tunisian desert.

The largest salt lake in the Sahara is mysteriously alluring.

This medieval tower is all that remains of the castle where Joan of Arc was held before being burned at the stake.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

Historic medieval fortified city in southwest France.

The world's tallest bridge is also possibly the most elegant.

Nestled in the woods lies this land art project: a hybrid between park, maze and natural monument.

A radio telescope for listening to the stars, based in one of the cloudiest countries in the world.

Largest lake in Great Britain measured by surface area.

A six-ton wedding present for the King of the Scots.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

The final resting place of soldiers' loyal canine companions.

A remarkable feat of Victorian engineering across the Firth of Forth.

A castle in the Scottish Highlands has been continuously inhabited since the 1300s.

This Dutch statue is a monument to the fictional shrew who brought doom to the city of Stavoren.

The history of sea-faring refuse and disaster is on cramped display in this Netherlands folk museum.

Hiding the longest subterranean river known in the world.

A little sculpture with a large wardrobe.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

Climb inside an iron crystal magnified 165 billion times its normal size.

The tallest mountain in mainland Netherlands isn't actually very tall.