This excellent museum is close to the Port, in the old Drassanes building. It tells the visitor about Catalunya (not Spain, just Catalunya) and includes interactive attractions for the kiddies. Its a great place to visit when its really hot with the air conditioning and also when it rains. It is cheap and interesting.
If you own or manage Museo d'Historia de Catalunya, register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.