Name : Mundeshwari Devi Temple, Bihar  
Information : Located in the Mundeshwari Hills, the Maa Mundeshwari Devi Temple is a shrine devoted to Lord Shiva and Shakti. It's thought that rituals and devotion have been practised here without a pause for thousands of years now. So Mundeshwari is known as one of the world's oldest Hindu temples that is still in functional order.