Casa Canals is a grand 19th-century mansion in Tarragona's old town, preserved with the heavy furniture, decoration, and social theatre of a wealthy local family. King Carlos IV stayed here, and the rooms were arranged to make that kind of guest feel properly impressed.
It is a compact visit, best paired with the cathedral, Roman walls, and nearby historic streets. The pleasure is in the domestic detail: painted ceilings, formal rooms, and the sense of how Tarragona's upper class wanted to be seen.