A 100-plus-year-old mill transformed into a hotel and restaurant.

Over time, this castle grew to encompass the entire island.

A magnificent winding road through a steep valley, with deep natural caverns at the bottom

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

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

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

Saint Joseph was said to heal the deaf and blind, but it was a much smaller miracle that got him canonized.

This cafe offers a curated collection of treats and tipples made by monks and nuns.

A once-secret library of Freemason history in Catalonia.

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

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

Cat art as far as the eye can see.

This unattributed sculpture in Amsterdam is hiding in plain sight.

This plaque marks the former home of one of the first women physicians in the Netherlands.

A set of seven houses, each built in a style that represents a European country.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

An artistic tribute to the famous singer, just around the corner from where he was born.

"We gonna rock down to Electric Avenue, and then we'll take it higher..."

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

This snug medieval lane is one of the narrowest streets in the world.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

This museum offers a journey back to the Belle Epoque era of Romania.