Khartoum is an economic and trade centre in Northern Africa, with rail lines from Port Sudan and El-Obeid. It is served by Khartoum International Airport, and Khartoum New International Airport is under construction. Several national and cultural institutions are located in Khartoum and its metropolitan area, including the National Museum of Sudan, the Khalifa House Museum, the University of Khartoum, and the Sudan University of Science and Technology.