The Kathmandu Valley, Nepal’s cultural and economic heart, is a bowl-shaped Himalayan valley containing the capital Kathmandu, plus Patan and Bhaktapur, famous for their rich history, unique Newari architecture, and blend of Hindu and Buddhist traditions, showcased in its seven UNESCO World Heritage sites like Durbar Squares, Swayambhunath (Monkey Temple), and Boudhanath Stupa, making it a vibrant hub of festivals, art, and spiritual significance.