Beijing Daxing International Airport is a huge international aviation comprehensive transportation hub built between Daxing District of Beijing and Guangyang District of Langfang City, Hebei Province. It is a national key project and is known as the first of the "Seven wonders of the New World". Beijing New Airport parking building and comprehensive service building project construction area of 500,000 square meters, by the east and west two parking buildings, the middle of the comprehensive service building and underground rail transit three parts.