King Abdulaziz International Airport
Apart from mass transit systems such as metros, the only high-speed railway line in the kingdom is the Haramain high-speed railway line, construction of which was completed in 2017. The line is 453 km (281 mi) long and connects the two Islamic holy cities of Mecca and Medina via the King Abdulaziz International Airport in Jeddah and the King Abdullah Economic City.