Housed in a memorial lighthouse, this museum relays the history of surfing, beginning with the antics of royal Hawaiian teenagers.

The former 1920s mansion of a prominent Catalan developer was used as the Soviet Embassy during the Spanish Civil War, and there is still a bunker below the garden.

For one day every month Barcelona's Estació de França transforms into a market for model trains.

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

A once grand hotel now sits eerily abandoned in the Catalan countryside outside Barcelona.

Hidden away in a modern library are the remains of one of the 18th century's most celebrated wunderkammers.

A special area of the National Archaeological Museum of Naples is located inside a metro station.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

An otherworldly, fossil-rich cobble beach holds Viking graves, cairns, and other remains.

A perfectly circular stronghold constructed in the 10th century is now a nucleus of Viking culture housing a museum, village, and reenactment of an epic Viking battle.

This historic factory peddles classic toys from the picturesque English county of Devon.

When the public was consulted about a new piece of street art, they naturally asked for an enormous metal dragon.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.