With exhibits spanning from the Lower Paleolithic era right up to Jordi Pujol's proclamation as President of the Generalitat in 1980, the Catalan History Museum offers a virtual chronology of the region's past. Visit the museum for free from 10am to 2.30pm on September 11.
The National Day of Catalonia, familiarly known as 'La Diada', is celebrated every year on September 11. You'll find celebrations as well as marches and protests in the street, and you can enjoy free entry into museums, institutions and other spaces that open their doors to the public.
The Palau de la Generalitat keeps its doors open for the better part of the day on La Diada, and you don't have to book a spot in advance.