Asia's largest underground railway station, covering a total area of 147,000 square metres, opened on Wednesday in China's southern Shenzhen city. The Futian High-speed Railway Station in downtown Shenzhen, Guangdong Province, covers a total area of 147,000 square meters, or about the size of 21 football fields. Its three underground floors have seating for 3,000 passengers, according to Guangzhou Railway Corporation, which operates the station. With the opening of the new station, travel time between Guangzhou and Hong Kong will be slashed to half an hour.