Calatrava refers to the architectural style and works associated with the Spanish architect Santiago Calatrava. Known for his innovative designs, Calatrava often combines elements of engineering and sculpture, creating structures that are both functional and visually striking. His work frequently features flowing lines and organic forms, inspired by nature. Some of his most famous projects include the Turning Torso in Sweden and the City of Arts and Sciences in Spain. Calatrava's designs often incorporate bridges, train stations, and cultural institutions, showcasing his ability to blend art with infrastructure while emphasizing sustainability and harmony with the environment.