A large crowd gathered and sang the Catalan national anthem outside the Palau de la Generalitat de Catalunya in Barcelona on October 1 as part of demonstrations one year on from Catalonia’s referendum for independence.The referendum resulted in a landslide in favor of independence, but was declared unconstitutional by Spanish authorities. Several people were arrested in Barcelona on September 29 following protests by groups for and against Catalan independence. Credit: albacorazonegro via Storyful