It belongs to the junction of the northern and southern regions of China, part of which belongs to the south and part to the north. Because of this unique geographical location, Huai 'an even has a North-South Geographical Indication Gardening Building, which has become China's new business card in Huai 'an. This geographical indication garden is located on the bank of Huai 'an ancient Huaihe River. There is a very unique sign here, that is, Hongqiao. In the middle of the bridge, there is a very huge round body that completely separates the north and the south. The round fuselage is divided into two different colors, red and blue.