Religious dwelling in a Spanish volcano.

These striking ruins of a castle resemble a ship's stern.

Famed architect Antoni Gaudi built this generous thank you gift to a friendly host who housed him during a job.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

An enchanting monastery in the Spanish countryside appears lifted from a fantasy tale.

The Gaudí-inspired building that was the start of Terrassenc modernism.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A black cat protests the City Guild in Riga's Old Town.

The Guardian of Tallinn.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

Ugly 18th-century dwarf statues living in a perfectly landscaped Austrian garden.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Fountain where visitors can earn a license to be mad.

Tiny castle in the middle of the Rhine made you pay to pass.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

The fairy tale castle of the "fairy-tale king."

Abandoned castle was once a grand example of Russian privilege, built exclusively to win a frivolous bet between noblemen.

A miniature city, once ruled by the Queen of the Netherlands.

A little sculpture with a large wardrobe.

Christ's blood preserved in a Belgian town.