Give some examples what are the characteristics of housing construction in different regions.

Housing architecture in different regions has different styles due to different topography, climate, history, and people's wishes and creations.

The houses and courtyards of Beijing courtyards are symmetrical, surrounded by east, west, north and south, forming a Z-shaped shape with a central courtyard inside; the houses of Anhui residents have white walls and blue tiles, and are well-proportioned. It gives people a sense of tranquility; the residents of the Jiangnan water town are built along the river. In order to facilitate washing, every household has built stone steps on the water side, which serve as a water-river bridge, which is both simple and practical.