This museum houses an imposing skeleton army comprised of creatures great and small.

Museum on French naval history, with magnificent figureheads, a historic diving suit, and a boat used by Napoleon.

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

The Argonaute submarine was the French navy's pride and joy in the 1950's.

France's national museum of scientific and industrial instruments.

A magical, macabre wax museum, beloved by locals, uses real artifacts to depict an assassination from the French Revolution.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

Peeing dogs guard the Roman hunting goddess atop a fountain at France’s Château de Fontainebleau.

One of the most powerful religious centers in the Middle Ages, dubbed the founder of Western monasticism.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

Hundreds of hidden passageways weave through the old quarters of Lyon.

Hidden along this old street in Antwerp is a surreal monument of a bronze arm sprouting four hands.

This legendary giant, born from vegetables, terrorized townspeople and cheated local children in games.

This interactive sculpture allows visitors to leave a message in case a friend passes by.

This modern arts center is built around a gem of late-Baroque architecture.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

Intricate metal sculpture that's half gothic cathedral, half construction equipment.

Inside this park resides a giant clock tower and ancient sundial that overlook the town below.

Claude Monet immortalized this medieval bridge in two of his paintings.

One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

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

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

One of the two original gateways into the Kasbah, this gateway is a nesting site for storks.