9. Barcelona, Spain
This city’s diverse and distinguished architecture differentiates Barcelona from other European destinations. The influence of Antoni Gaudí can be seen throughout the city in places like Güell Park, La Sagrada Familia and Casa Batlló. Other spectacular structures include the Palace of Catalan Music, the Cathedral of Santa Eulalia and the Barri Gótic neighborhood.
Plus, one of the most important buildings to Barcelona residents (and fútbol fans), the Camp Nou Stadium, is home to one of the most popular soccer teams in the world, FC Barcelona.