811 meters south of the bell tower in downtown Xi' an. According to the Baidu map, the largest construction bank in Xi 'an is 811 meters south of the bell tower in the center of Xi 'an. Xi 'an, referred to as "Gao" for short, was called Chang 'an and Haojing in ancient times. It is the capital of Shaanxi Province, a sub-provincial city, a mega-city and a core city of Guanzhong Plain urban agglomeration, and an important central city in western China confirmed by the State Council.