長城：
The Great Wall,like the Pyramids of Egypt,the Taj Mahal in India and the Hanging Garden of Babylon,is one of the great wonders of the world.
The Great Wall is divided into two sections,the east and west,with Shanxi Province as the dividing line.The west part is a rammed earth construction,about 5.3 meters high on average.In the eastern part,the core of the Wall is rammed earth as well,but the outer shell is reinforced with bricks and rocks.The most imposing and best preserved sections of the Great Wall are at Badaling and Mutianyu,not far from Beijing and both are open to visitors.
　　The Wall of those sections is 7.8 meters high and 6.5 meters wide at its base,narrowing to 5.8 meters on the ramparts,wide enough for five horses to gallop abreast.There are ramparts,embrasures,peep-holes and apertures for archers on the top,besides gutters with gargoyles to drain rain-water off the parapet walk.Two-storied watch-towers are built at approximately 400-meters internals.
故宮：
The Palace Museum is located on city center in Peking.China is existing biggest,most integrity of thou building cluster.It is been one of five greatest temples in the world by the fame.
The Palace Museum start to set up in A.D.1406,the Palace Museum have the size courtyard more than 90s and the house contain 980 and add up to 8704.the Palace Museum surroundings surround 12 meters in height,long the Palace Museum wall of 3400 meters,form is one rectangular city defense,there is 52 meter wide moat outside the wall surround,formation a fortress of severe barracks.
The Palace Museum has 4 doors,center door Wu door,east door Donghua door,west door Xihua door,north door Shengwu door.