Casa Batllo (World Heritage Site) - One of 2 houses by Gaudí in Barcelona that can be toured. truly amazing and worth the visit. go in the mornings, before the site gets crowded with architecture students.
Barcelona, Spain - long weekend reconnecting with schoolmates at bars, seeing museums (one dedicated to Picasso's early works was my favorite) and all the gorgeous Gaudi architecture. I've visited this Park and Gaudi is amazing!