Casa Batlló is a renowned building located in the center of Barcelona and is one of Antoni Gaudí’s treasures. A rebuild of a previously built house, it was redesigned in 1904 by Gaudí and has been renovated many times after that. The local name for the building is Casa dels ossos (House of Bones), as it has a visceral, skeletal organic quality. The ground floor, in particular, has an unusual web, irregular oval windows and flowing sculpted stonework. There are few straight lines, and much of the façade is decorated with a colorful mosaic made of broken ceramic tiles (trencadís). The roof is arched and was shaped like the back of a dragon or dinosaur.
The Manzana de la Discordia – the Block of Discord – is one of the most famous spots in the city, a collection of modernist buildings sharing the same facade. Located in Passeig de Gràcia between Calle Aragó and Calle Consell de Cent, it's an accurate representation of the contrasts between the different architectural trends of the day. At number 35 we can find Casa Lleò Morera, designed by Domènech i Montaner; a little further along you come across Casa Amatller, designed by Puig i Cadafalch; and finally, Casa Batlló, a work byGaudí.
Casa Milà (Catalan pronunciation: [ˈkazə miˈɫa], Spanish pronunciation: [ˈkasa miˈla]), popularly known as La Pedrera or "The stone quarry", a reference to its unconventional rough-hewn appearance, is a modernist building in Barcelona, Catalonia, Spain. It was the last private residence designed by architect Antoni Gaudí and was built between 1906 and 1912. The building was commissioned in 1906 by Pere Milà and his wife Roser Segimon. At the time, it was controversial because of its undulating stone facade, twisting wrought iron balconies and designed by Josep Maria Jujol. Several structural innovations include a self-supporting stone façade, and an free-plan floor, underground garage and the spectacular on the roof-terrace. In 1984, it was declared a World Heritage Site by UNESCO. From 2013 is the headquarters of the Fundació Catalunya La Pedrera which manages the visit to the building, exhibitions and other cultural and educative activities at Casa Milà.
The Park Güell is a public park system composed of gardens and architectonic elements located on Carmel Hill in La Salut, a neighborhood in the Gràcia district. With urbanization in mind, Eusebi Güell assigned the design of the park to Antoni Gaudí; he understood better than any of his contemporaries the meaning of Gaudí’s architecture, the relationship between the two men was not merely that of an artist and his patron, but a real story of friendship. The park was built between 1900 and 1914 and was officially opened as a public park in 1926. In 1984, UNESCO declared the park a World Heritage Site.
The Basílica I Temple Expiatori de la Sagrada Família (Basilica and Expiatory Church of the Holy Family), is the greatest unfinished Roman Catholic church in the world and is located in Barcelona, designed by Catalan architect Antoni Gaudí (1852–1926).