The Ciutadella Park extends over the remains of the old fort that was built in the 18th century to control Barcelona militarily, together with the Montjuïc Castle, and to be able to subject the city to crossfire if it revolted again.
Once the space around the city had been cleared and the Cerdà plan had begun its works, the military imposed the condition that the land should be turned into a park for the fort’s demolition. This is submitted to a competition, which is won by Josep Fontserè thanks to his ability to hand over the land against the remains of the Ribera district, demolished precisely to build the fort, and against the growing city organised by Cerdà.
Against the Ribera district, Fontserè organises an urbanization which depends on the Passeig del Born and the current Passeig Picasso, both parallel, culminating in the Born market. Against the Eixample, Fontserè has what will become the Passeig de Sant Joan.
The project suffers from two major setbacks: the first one happens when Fontserè is forced to preserve part of the Ciutadella buildings (such as the one that currently houses Parliament of Catalonia) and to have a water tank that ends up being turned into a monumental waterfall. Fontserè does the project with the collaboration of Antoni Gaudí, then still a student. The second setback is the 1898 Exhibition, which delays its development. This is carried out episodically over the following decades, never completed on the southern slope where Mayor Porcioles will end up building the Zoo that prevents the connection with Poblenou.
Today, all the romantic-inspired gardens, preserved by existing buildings and those built in the early 20th century, which produce one of the most pleasant walks in the city, are preserved. The monumental waterfall, where Gaudí played a decisive role, is still open to the public and can be visited. The park is guarded by a perimeter fence and the Zoo is still awaiting relocation. When this is done, the park will finally reach its original perimeter.