The Park Güell is one of the most prominent icons of Catalan modernism and one of the most emblematic creations of the renowned architect Antoni Gaudí. The park is named after Eusebi Güell, a patron and friend of Gaudí, who commissioned its construction in 1900 as part of an urbanization project.
The Basílica i Temple Expiatori de la Sagrada Família, shortened as the Sagrada Família, is an under construction church in the Eixample district of Barcelona. It is the largest unfinished Catholic church in the world. It is Gaudí's masterpiece and the ultimate representation of Catalan modernist architecture. It is the most visited monument in Spain and the most visited church in Europe after St. Peter's Basilica in the Vatican. When completed, it will be the tallest Christian church in the world, standing at 172.5 meters in height. 
Casa Batlló, an iconic Gaudí building on Passeig de Gràcia, represents the artistic splendour of this unique architect. Declared a World Heritage site by UNESCO, its undulating roof, which reminds you of a dragon’s back, is one of the icons of Barcelona Modernisme.
A Modernista gate
Casa Milà, better known as La Pedrera, is one of the most emblematic Modernista buildings from the beginning of the 20th century in Barcelona.A visit to Casa Milà, which stands on Passeig de Gràcia and is open to the public, lets you peek inside and discover the impressive roof terrace, dotted with stone warriors.