Jaipur's signature building, the Hawa Mahal, a multi layered palace, was built by Sawai Pratap Singh (grand son of Sawai Jai Singh and son of Sawai Madhoo Singh) in 1799 A.D. and Mr. Lal Chand Usta was the architect. Famous for it's beehive like structure, the Hawa Mahal is an interplay of red and pink sand stone, carefully and painstakingly outlined with white borders and motifs. This five storey building, which looks out over the main street of the old city, is a stunning example of Rajput artistry, with its pink semi-octagonal and delicately honeycombed sandstone windows. It was originally built to enable ladies of the royal household, to watch the everyday life and processions of the city.