The Kathmandu Valley is a region of 600 square km in central Nepal. It's home to three of the largest cities in Nepal, including Kathmandu itself, as well as hundreds of smaller towns and villages. The Kathmandu Valley lies at the crossroads of ancient civilizations of Asia, and has at least 130 important monuments, including several pilgrimage sites for Hindus and Buddhists. The cultural heritage of the Kathmandu Valley is illustrated by seven groups of monuments and buildings which display the full range of historic and artistic achievements for which the Kathmandu Valley is world famous. The seven include the centers of the three primary cities, Kathmandu Hanuman Dhoka, Patan Durbar Square and Bhaktapur Durbar Square, the two most important Buddhist stupas, Swayambhunath and Boudhanath and two famous Hindu shrines, Pashupatinath temple and Changu Narayan.