The park is 31 hectares large, and is limited by the Arc of Triumph, the Francia Station and the Villa Olímpica.

The Ciudadela Park was conceived as a science and culture dissemination park for the Universal Exposition of 1888, where scientific and cultural advances were demonstrated to the world. The park houses large and different buildings such the Catalan Parliament, the Barcelona's Zoo, the Greenhouse, the Umbracle, the Martorell Museum and the Three Dragons Castle.

It was planned to make a series of replicas of prehistoric animals to accompany these zoology, geology and botanical museums. Unfortunately only one was ever made: the Mammoth, work of Miquel Dalmau.

Probably the most famous construction of these buildings in this park is the Cascade Fountain. Its design is based on the Trevi Fountain in Rome. Many architects and designers participated in its creation, including Antoni Gaudí.

In this park you can find people painting, practicing meditation or yoga, jogging, or just being with friends having a picnic, playing music or just sunbathing. You could say that his park is so generous that it offers something for everyone!