The Thap Doi Towers, also known as the Twin Towers, are a pair of ancient Cham towers located in Binh Dinh Province, Vietnam. Built in the 12th century, these towers are significant examples of Cham architecture, showcasing intricate carvings and unique brickwork. They were dedicated to the Hindu deities Shiva and Vishnu. The towers stand about 20 meters tall and are surrounded by lush greenery, making them a popular tourist attraction. Visitors can explore the site to learn about the rich history of the Cham civilization and appreciate the artistic craftsmanship of the era.