What is the gate of this building?

That has to start with the origin of Xiamen: 1. The origin and connotation of Xiamen place names.

Xiamen is one of the five special economic zones in China. It now governs six districts, namely Siming, Huli, Jimei, Haicang, Tongan and Xiang 'an, and speaks Minnan dialect. According to legend, it was the habitat of egrets in ancient times, so it is also called "Egret Island". According to legend, in ancient times, flocks of egrets often lived on Xiamen Island. Therefore, Xiamen Island is called Ludao, and Guxia Strait is also called Lujiang. Human life in Xiamen Island can be traced back to the late Neolithic period 3000-4000 years ago. The recorded history began in the middle of the Tang Dynasty, and it has been more than 40 years since1/kloc-0. During the Tianbao period of the Tang Dynasty, Han Chinese Xue and Chen immigrated to the island from Fuan in eastern Fujian and Zhangzhou in southern Fujian, and lived in the southern and northern foothills of Hongji Mountain respectively. Xiamen's administrative system began in the Song Dynasty and belongs to Tongan County, Quanzhou Prefecture. In the 20th year of Hongwu in the early Ming Dynasty (1387), North Korea began to build villages in cities and set up health clinics on the island. The city name "Xiamen" means "the gate of the motherland building". The place name of Xiamen was established from then on. In the following hundreds of years, Xiamen was renamed as "Siming House" and "Siming County" successively. Xiamen was formally established on 1933, becoming the first city in Fujian province.