Casa Vicens is a modernist architecture building in Barcelona, in the Gràcia district, at the Carrer de les Carolines, and was the first major work of Gaudí since it previously worked only for public works or as an assistant to other architects. Since 2005, Casa Vicens is a UNESCO World Heritage Site. This work, like many others of the artist, reveals the influence of Viollet-le-Duc, and was exactly what he formulated for his style for the first time. The building is in a modernist style, but it combines Gothic elements into a Mediterranean, or even Islamic style. Gaudí was looking for "a Gothic full of light, which would make use of color, a Gothic by half of the sea, half continental." The result was therefore a mix of Mudejar and Gothic style. Brick and rough stone azulejos are joined, alternating vertical motifs on chessboard grounds to remind you of an Arab construction. The house plan is quadrangular. Gaudí specially treats the corners of the house, avoiding the rigidity of the parallelepiped. The azulejos were designed by Gaudí, following the pattern of flowers in the garden of the house. It is also inspired by the surrounding nature even for the iron railings, realized following the shape of the palm leaves. The interior decoration was equally well cared for: wall paintings stand out, which always have nature as their main theme. On the ceiling of the foreground a painter painted a decoration that illudes a connection with the outside. The work was commissioned by a young Antoni Gaudí by Manuel Vicens i Montaner, owner of a land he had inherited from his mother Rosa Montaner. It was a holiday home that was the first important work of the architect. Gaudí presented the project and the municipality of Gràcia granted permission in the first months of March of the same year. Work went on up to one thousand nine hundred and eighty-eight with several breaks due to lack of funding. The palace is structured on four levels, corresponding to a cellar basement, two floors for the home and an attic for the staff. architect Joan Baptista Serra realized an extension of the building and for this work won the Concurs anual d'edificis artístics award, 1927.