Some people compare the Parc de la Ciutadella to Central Park in New York.
I guess they are not thinking about its surface (Central Park is 20 times larger than the Ciutadella) or its origin, but rather about its role in the city.
After the War of the Spanish Succession of 1714, Philip V had a citadel built on the area that the park occupies now to dominate the city of Barcelona, and incidentally, all of Catalonia. The building, which also forced the destruction of the Ribera district, became a symbol that was hated by the locals, until its demolition was decided in the nineteenth century, leaving only some of the interior buildings. One of them was the arsenal, which now houses the Parliament of Catalonia.
Anyway, what I meant is that the Ciutadella Park is now a meeting place for many locals, that go there for a walk, a picnic or just to spend Sunday afternoons.
And...is there anything better than having a nap on the lawn, with the spring sun heating your body?