Polonnaruwa is an ancient city in Sri Lanka that served as the capital from the 11th to 13th centuries. It is known for its well-preserved ruins, which include impressive temples, palaces, and statues. The city is a UNESCO World Heritage Site, showcasing the rich history and architectural achievements of the Sri Lankan civilization. Visitors to Polonnaruwa can explore significant sites such as the Gal Vihara, featuring large rock-carved Buddha statues, and the Royal Palace complex. The city is surrounded by lush greenery and offers a glimpse into the past, making it a popular destination for history enthusiasts and tourists alike.