This book mainly introduces the contents of ten chapters. The first chapter is the structure of Chinese traditional architecture, mainly introducing the large roof, bucket arch, etc; The second chapter is quadrangles and the Forbidden City, which mainly introduces the planning and layout of the Forbidden City; The third chapter is sacrifice and altar temple, which mainly introduces the temple of heaven and ancestor sacrifice in Beijing; Chapter IV mausoleums, mainly Qin and Han tombs, Tang and s