Tulou are traditional earthen buildings found in the Fujian province of China. They are typically round or square in shape and serve as communal living spaces for families and their livestock. Constructed from rammed earth, these structures are known for their thick walls, which provide insulation and protection. These unique buildings often house multiple generations under one roof, fostering a strong sense of community. Many tulou are recognized as UNESCO World Heritage Sites due to their cultural significance and architectural ingenuity, showcasing the rich history of the Hakka people who built them.