Central Palma features several examples of modernismo architecture.  Lluis Domenech i Montaner built the lavish Gran Hotel.  Today this is the home of the Fundacio La Caixa, which is free to enter and contains interesting exhibitions, a cafe bar and a video explaining the modernismo background of Palma.  

 Josep Cassayas built two exquisitely curvaceous twin apartment buildings on the Placa Mercat, just opposite the Gran Hotel.  See below.  

One of several Modernista shop fronts is shown above