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.

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

Historic medieval fortified city in southwest France.

An intricately decorated tiny place of worship.

An 800-year-old island castle in Guernsey's main harbor.

This natural crater along the coast of Jersey may take its name from the devil statues who have watched over it.

A passage grave used in neolithic rituals.

The room where Vincent van Gogh died.

The artist and his brother are buried in a landscape straight out of a van Gogh painting.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.

This mountaintop mariner’s church is packed with model ships and nautical art while hosting an annual maritime festivity for the townsfolk below.

One of the oldest and largest wooden churches in France was very evidently constructed by shipbuilders.

Folklore and history carved into Brittany's coast.

A copy of the Statue of Liberty greets visitors to the birthplace of Auguste Bartholdi.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

This historic funicular system combines the old with the new while offering delightful views over the surrounding valley.

It's good luck to be mocked by this monkey.

World's largest barrel containing an inn.

A former ironworks that was the first UNESCO industrial site.

The last bastion of Roman presence north of the Alps looms over a German town.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

This noble mash-up in eastern Luxembourg is part Medieval, part Renaissance, all castle.