Gaudi : The Man and His WorkSince the late 1800s, Spanish architect Antonio Gaudi's fanciful buildings have defined Barcelona's cityscape with their startling architectural forms that paralleled the development of Art Nouveau. His playful spires and towers, undulating tiled roofs, and writhing chimneys loom like fantastical creatures atop commercial and apartment buildings alike, and his sculptures are an integral component of many of the city's parks and public spaces.