1920's reinforced concrete church by architect Auguste Perret changes the face of modern design.

Construction of Barcelona’s iconic (but controversial) church was finally 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.

A garden in Lisbon filled with giant porcelain creatures.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

One of the most popular megalithic sites in Ireland stands as a humbler version of Stonehenge.

Massive galleon from a box-office bomb docked in Genoa.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

2300-year-old Roman road connecting the empire.

A miniature Corsican village built out of pebbles.

A floundering Polish shipyard was once the soul of the Solidarity movement that capsized communism.

The topiary maze at the Habsburg hunting lodge.

The Habsburgs' royal collections of art and wonders.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

This historic island prison holds one of the dungeons from the Count of Monte Cristo even though it is a work of fiction.

The deadliest diving spot in the world is also a stunning geological marvel.

Holding the most bodies of any cemetery in the United States.

Famously misunderstood wonder of the ancient world