Seville's Alcázar plays Dorne in “Game of Thrones,” and the Plaza de España becomes Naboo in “Star Wars: Episode II.”
Gaudí's Sagrada Família, begun in 1882, is still unfinished: a building site more than 140 years in the making.
Swap the packed Rambla for the Gràcia district. With an eSIM, book Alhambra and Sagrada slots ahead, order a ride-hail, and check reviews to avoid frozen paella.