If you can’t face another trip to the Sagrada Familia with visiting family, it’s time to take them off the beaten track and explore some of the city’s lesser-known Modernista architecture. Beyond the star attractions, Barcelona is also home to a wealth of lesser-known Modernista heritage that the city is working hard at renovating and opening to the public: in the last year three more buildings opened their ornate doors to the public. There are no long queues in the sun to enter these living museums, just a chance to take in some outstanding design and craftsmanship at your own leisurely pace, or as part of a small tour group. The Ruta del Modernisme (www.rutadelmodernisme.com) has a detailed map of 115 heritage points in the city, of which 20 are open to inside viewing.
http://www.barcelona-metropolitan.com/things-to-do/barcelona-modernista-jewels/