Warsaw | across black and white history, return you a colorful Warsaw Hitler said, I will wipe Warsaw forever from the earth, so day and night bomb Warsaw Old City, and finally all the houses are set on fire. But fortunately, the buildings were mapped by teachers and students at the University of Warsaw, and the Warsaw people rebuilt the vicissitudes of the old city in just three decades after World War II, including the Copernicus monument and the Holy Cross Cathedral, which houses Chopin's heart. To encourage the people of Warsaw to protect the spirit of their national culture and history, the rebuilt Warsaw was also, on an exceptional basis, included in the World Heritage List by the United Nations in 1980. The columns of Sigmund III in front of the Old Town Square were designed to commemorate his move of the Polish capital from Krakow to Warsaw, and the Polish house behind them was like a plate of watercolor paint, which was gradually changed and dyed in a daze.