Because I had a meeting in Warsaw and stayed there for four days, I was deeply impressed by Warsaw's overall environment, or totally unexpected. Warsaw City is a special city with a very long history, which can be traced back to the tenth century A.D. However, the development of nearly a thousand years can not resist a war. Warsaw was almost completely destroyed during World War II. What we see now is basically the reconstruction after the war. Fortunately, the policymakers have complied with the public opinion, otherwise we will not see the ancient Warsaw civilization. Warsaw is now divided into old and new cities, which are also completely rebuilt. The ancient city of Warsaw was listed on the United Nations World Heritage List as a special case in 1980, which was unique at that time, because the World Heritage Site generally refused to accept reconstruction. Later, the old city of Taierzhuang in China also belonged to this category. So far, only two cases in the world have been included in the World Heritage List for reconstruction.