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

Week-long block party becomes a competition for the best decorated street.

Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

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.

Mountain where Jesus was first tempted by the Devil.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

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

A beautiful but toxic fountain of mercury.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

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

The chefs at El Diablo use heat generated by an active volcano to cook the food.

A network of hundreds of interconnected wineries in caves hides under the town center.

Madrid's last horchata kiosk is a blue-and-white beacon of refreshment.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

The best place in the world to buy tinned fish.

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

This whimsical winery by Antoni Gaudí looks ripped from the pages of a fairytale.

Hidden behind a wall, Spanish nuns distribute their signature sweets on a revolving tray.

A pastry shop specializing in Sephardic sweets serves historic recipes in Ribadavia’s Jewish quarter.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

Early prototype for Frank Lloyd Wright's Guggenheim.

A collection of memorabilia from the Beat era in the back of a San Francisco bookstore.