A majestic hotel for dreamers rises from the center of a fairytale wood.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Historic medieval fortified city in southwest France.

If they push on just the right spot, even the weakest person can move this titanic boulder.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

The first green space constructed on an elevated viaduct.

A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

Despite centuries of architectural innovation, this French castle is being built like it's the 13th century.

Europe's largest community of crocodiles and alligators.

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

18th century anatomical amphitheater of the Royal College of Surgery of Barcelona.

Turntable anonymously received orphans, alms, and groceries.

A beautiful but toxic fountain of mercury.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

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.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

Houses are tucked between, on, and underneath giant boulders.

Ancient catacombs form the foundation for this Rococo orgy of a church.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Elaborate tile work in this railway station tells the story of Portugal.

France's national museum of scientific and industrial instruments.