Tianjin sunken courtyard scenery

Quick answer：

Tianjin sunken courtyards are a unique architectural feature of the city, often found in traditional Chinese courtyard houses. They are below ground level and are characterized by their tranquil and serene environment, often with gardens, ponds, and pavilions. These courtyards offer a contrast to the bustling city above and are a testament to the blend of ancient Chinese architectural design and modern urban living.