Barcelona is the city in which Stalin's communists staged a bloody purge of socialists, anarchists and other communists, thus ensuring a victory for Franco. (For proof, read George Orwell's "Goodbye Catalonia")
Sometimes, I miss ol' Joe. He had a certain way of reducing the ranks of leftists.
Pardon me, recollection has kicked in. That's "Homage to Catalonia," by George Orwell, also known for his fictional work "1984" and "Animal Farm." George was a good socialist who saw the destructive tendencies of collectivization.