Barcelona and Antoni Gaudí’s architecture go hand in hand. When Antoni Gaudí received his degree from the School of Architecture in Barcelona in 1878, the Director, declared: “I do not know if we have awarded this degree to a madman or to a genius; only time will tell.” Explore the eccentric, nature inspired, one of a kind architecture of the creative madman on a Gaudí walking tour, an absolute must on every Barcelona things to do itinerary. From the oddly visceral masterpiece Casa Batlló to the basilica that has been under construction for over 100 years, Sagrada Familia, every creation of Gaudí is equally mindboggling.