Mecca kilometer elevated metro transports pilgrims to holy sites Mount Arafat, Muzdalifah and Mina in the city during hajj reducing the congestion on the roads. Mecca Metro, officially known as Makkah Mass Rail Transit, is a planned four-line metro system for the city. This will be in addition to the Al Mashaaer Al Mugaddassah Metro which carries pilgrims during Hajj. A high speed inter-city rail line (Haramain High Speed Rail Project also known as the "Western Railway"), is under construction in Saudi Arabia. It will link along 444 kilometres (276 mi), the Muslim holy cities of Medina and Mecca via King
Mecca become more advanced with new technology, but along with new skyscrapers and event centers, it still contains temples that are important for the pilgrimages to Mecca. In World War I, the Ottoman Empire was at war with Britain and its allies, having sided with Germany. It had successfully repulsed an attack on Istanbul in the Gallipoli Campaign and on Baghdad in the Siege of Kut. The British agent T. E. Lawrence conspired with the Ottoman governor Hussain bin Ali, the Sharif of Mecca. Hussein bin Ali revolted against the Ottoman Empire from Mecca, and it was the first city captured