This Funeral Hearse Museum represents the finest in cadaver transportation.

One of Europe's largest supercomputers is housed inside of a disused chapel.

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

A temple to modernity, tucked away amid Barcelona's more well known museums.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

This historic Art Nouveau townhouse was the former home of the son of a famous chemical inventor and industrialist.

One of the best examples of the modernist movement in Madrid.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

Mountain where Jesus was first tempted by the Devil.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

This cemetery features modernist statues as strange as its name.

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

The studio of Catalonia's most famous theatrical designer remains exactly as he left it.

This home designed for chocolate magnate Antoni Amatller is an exquisite treasure-box of Catalan Modernism.

This late-brutalist masterpiece everyone forgot about was originally created to get the proletariat jazzed about the arts.

Britain's oldest permanent theatre designed and built for puppets.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

Behind the pink curtain, Au Bonheur du Jour, an art gallery of erotic archives.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.