My favorite city in all of Spain was Barcelona, founded over 2000 years ago by the Romans. I liked it because of the wild variety of architecture among other things. We drove through the "Modernism" section of the city, apartments from the early 1900's, definitely the high rent district. Very ornate street lights, three different architects on one street, one of them Gaudi. Casa Mila was built 1906-1912. "Passa de Gracia", a street from 1906, originally lined with large homes and apartments, now elegant shops, expensive apartments (owned like condos). You can buy one for 2 million euros. I'll keep this in mind when I win the Power Ball. Gaudi, one of the city's most famous architects, said "there are no straight lines in nature", so none in his work. He died in 1926, hit by a tram, never married. Gaudi's park, which was originally intended to be a suburban housing development but no one wanted to live that far out of town, is amazing, very fanciful and fun. Spain is a fun, fanciful country. Everywhere you look things that make you smile.  I'm ignoring the bull fights here. The Church of the Holy Family, Sagrada Familia, Gaudi's final project, is a combination of traditional Gothic, started by another architect, and Gaudi's unique style. Impressive, some beautiful elements, lovely strong sculptures on the front of the building. They expect this church to be finished in ten years. Gaudi is buried in the crypt. I still really like "pure" Gothic.  When asked when the church would be finished Gaudi said "My God is not in a hurry." 1936-1954 nothing done on this church, money ran out.
Olympics were in Barcelona in 1992. Reawakened interest in the city, lots more visitors to church. They have plenty of money to finish it now.  Lots more tourists in general. Olympic athletes stayed on cruise ships, Then Barcelona became a popular cruise stop. An exciting city and a wonderful place to end out trip.