Classical Chinese gardens have a long history dating back over 3,000 years. They are known for their balance, harmony, and ability to capture the essence of nature in a three-dimensional landscape. Key elements include rocks, water, plants, and structures like pavilions and bridges. Chinese gardens can be categorized as either imperial gardens constructed by rulers or private gardens, and they differ in style between northern and southern regions of China. Famous examples include the Summer Palace and Humble Administrator's Garden in Suzhou.