The ambitions of Gaudi, the famous Catalan architect, were so great that some of his works could not be completed during his lifetime. The Parc Güell was to have been a garden city, but it remained unfinished, as did the Sagrada Familia. Until recently, it was the last site designed by Antoni Gaudí that was still free in Barcelona, but since 2021, admission has been charged. This is partly to regulate the number of tourists visiting the site, and partly to pay for the work needed to complete the park.
Gaudí's fairytale garden is one of the most unusual green spaces, laid out between 1900 and 1914 and listed as a UNESCO World Heritage Site. The two pavilions at the entrance are reminiscent of Hansel and Gretel's gingerbread house, while the interiors are more reminiscent of a hobbit's dwelling.