目前随着对欧洲旅游的开放 ,出国赴欧洲旅游的人数逐渐增多。到欧洲一趟 ,不可以不去欣赏欧洲的建筑。许多人到了欧洲 ,象巴黎圣母院、比萨斜塔、科隆主教堂等著名建筑也都去看过 ,但回国后问及他这些建筑各有什么特点却不太清楚 ,这很遗憾。欧洲的许多古建筑保留完好 ,多少年? Currently with the opening up to European tourism, the number of people traveling to Europe to travel abroad is gradually increasing. A trip to Europe, can not not enjoy the European architecture. Many people arrived in Europe. Notable buildings such as Notre Dame de Paris, the Leaning Tower of Pisa and the Cologne Cathedral have also been visited. However, it is regrettable to ask him about the characteristics of these buildings after returning to China. Many ancient buildings in Europe remain intact, how many years?