2. Park Güell (Barcelona): about 5.0 million visitors yearly
In Park Güell, you can awe over Gaudí’s colourful mosaics, whimsical designs, stunning gardens, and gorgeous views over Barcelona.
Little-known fact: The park was originally planned as a luxury housing estate with 60 plots. In the end, only two houses were built, and Gaudí himself lived in one of them.
3. Sagrada Família (Barcelona): 4.8 million visitors yearly
The Sagrada Família is a surreal mix of Gothic and modernist architecture. It’s design of towering spires that resemble melted wax from a distance makes it one of the most recognisable buildings in the world. The Sagrada Família is largely expected to take the number one spot of most the visited attraction in Spain when completed.
Little-known fact: Construction on the historical site began in 1882, and the basilica is funded entirely by donations and ticket sales, with zero government or Church funding.
4. Basílica del Pilar (Zaragoza): 4.0 million visitors yearly
Pilgrims revere the Basílica del Pilar as the site of the Virgin Mary’s apparition to St. James. The average tourist, however, admires it for its Baroque towers, domes, beautiful interior, and stunning riverside location.
Little-known fact: During the Spanish Civil War, three bombs fell on the basilica, but none exploded. Many consider this as just another miracle associated with the famous church.
5. PortAventura Park (Tarragona): 3.9 million visitors yearly
PortAventura Park in Tarragona combines thrilling rides with themed zones (Mediterranean, Polynesia, China, Mexico, Far West), plus an adjacent Ferrari Land for motor-sport fans.
Little-known fact: The Dragon Khan rollercoaster held the world record for the most inversions (eight) when it opened in 1995.
6. Museo del Prado (Madrid): 3.5 million visitors yearly
The Museo del Prado includes masterpieces by Velázquez, Goya, Bosch, and El Greco, and is considered Spain’s premier art museum and one of Europe’s great galleries.
Little-known fact: During the Spanish Civil War, much of the Prado’s artworks were secretly evacuated to Geneva for safekeeping.
7. Alhambra & Generalife (Granada): 2.6 million visitors yearly
The blend of Moorish palaces, tranquil courtyards, flowing fountains, intricately carved stucco, and sweeping Sierra Nevada vistas makes the Alhambra one of the most evocative heritage sites in Europe.
Little-known fact: Washington Irving, author of The Legend of Sleepy Hollow, lived inside the complex in 1829 and his Tales of the Alhambra helped inspire a new era of romantic fascination with Spain.
8. Seville Cathedral & Giralda: 2.3 million visitors yearly
Seville’s Cathedral is the largest Gothic cathedral in the world. Its Giralda tower offers panoramic city views and blends Islamic minaret design with Renaissance features.
Little-known fact: Christopher Columbus’s remains are interred here (though DNA tests show some of his bones are also in the Dominican Republic).
9. Royal Palace of Madrid: 1.6 million visitors yearly
Visitors come for the vast ceremonial halls, richly decorated apartments, grand staircases, the Royal Armoury, and the sense of being at the centre of Spain’s royal history.
Little-known fact: With more than 3.400 rooms, the Royal Palace of Madrid is the largest functioning palace in Europe, yet the Spanish royal family does not live here, they only use the building for state occasions.
10. Guggenheim Museum Bilbao: 1.3 million visitors yearly
The museum’s popularity is mostly due to its dramatic titanium curves, ever-changing international exhibitions, striking riverside setting, and outdoor installations ranging from Louise Bourgeois’s giant spider to Jeff Koons’s floral Puppy.
Little-known fact: The building was quite controversial at first, with many residents concerned that its modern design was out of place in a historic centre. Nonetheless, it went on to spark the “Bilbao Effect”; another example of how architecture can transform an entire city’s appeal and fortune.
