Fodor's Expert Review Parlament de Catalunya
Once the arsenal for the Ciutadella—as evidenced by the thickness of the building's walls—this is the only surviving remnant of Felipe V's fortress. For a time it housed the city's museum of modern art, before it was repurposed to house the unicameral Catalan Parliament. Under Franco, the Generalitat—the regional government—was suppressed, and the Hall of Deputies was shut fast for 37 years. Book a free 45-minute guided tour (Mon.–Fri.) of the building via the website at least two days in advance; it includes the grand "Salon Rose," which is worth a visit in itself.