Patalpuri Temple is a significant Hindu temple located in Gwalior, Madhya Pradesh, India. It is dedicated to Lord Vishnu and is known for its unique underground structure. The temple is situated within the Gwalior Fort, which is a UNESCO World Heritage Site, and is believed to date back to the 15th century. The temple features intricate carvings and a serene atmosphere, attracting both pilgrims and tourists. It is also associated with local legends, including the belief that it was built by the Tomar dynasty. Visitors often appreciate its historical significance and architectural beauty while exploring the fort complex.