Rajasthan is the largest state of the Republic of India by area. It encompasses most of the area of the large, inhospitable Great Indian Desert (Thar Desert), which has an edge paralleling the Sutlej-Indus river valley along its border with Pakistan. The state borders Pakistan to the west, Gujarat to the southwest, Madhya Pradesh to the southeast, Uttar Pradesh and Haryana to the northeast and Punjab to the north. Rajasthan covers an area of 132,150 sq mi or 342,239 km². The proportion of the state's total area to the total area of the country is 10.41 per cent. Rajasthan is famous for the majestic forts, intricately carved temples and decorated havelis, which were built by Rajput kings in previous ages, they were the soul of pre-Muslim era Rajasthan. Jantar Mantar, Dilwara Temples, Chittorgarh Fort, Lake Palace, City Palaces, Jaisalmer Havelis are part of the true architectural heritage of India. Jaipur, the Pink City, is noted for the ancient houses made of a type of sand stone dominated by a pink hue. At Ajmer, the white marble Bara-dari on the Anasagar lake is exquisite.