Guwahati is a sprawling city beside the Brahmaputra River in the northeast Indian state of Assam. It’s known for holy sites like the hilltop Kamakhya Temple, featuring shrines to the Hindu deities Shiva and Vishnu. To the east, 18th-century Navagraha Temple is an astronomical center with planetary shrines. Umananda Temple, dedicated to Shiva and covered with engravings, stands on Peacock Island in the river.