Santiago Calatrava maintains offices in Valencia, Zurich, and Paris. His extensive training as a sculptor, architect, and engineer makes him one of the most interesting architects of our time, earning worldwide fame for several sensational and innovative architectural projects. When Calatrava creates his works, he uses his skills as a sculptor, using natural movement and animal and human forms. By combining the free forms of art with strict geometry and modern materials, he transcends traditional limits and creates unique buildings. Among his most famous works are several bridges and railway stations, as well as communication towers and air control towers.