Riyadh is the capital and most populous city of Saudi Arabia. It is also the capital of Riyadh Province, and belongs to the historical regions of Najd and Al-Yamama. It is situated in the center of the Arabian Peninsula on a large plateau, and is home to 6.5 million people. The city is divided into 15 municipal districts, managed by Riyadh Municipality headed by the mayor of Riyadh, and the Riyadh Development Authority, chaired by the governor of Riyadh Province, Faisal bin Bandar Al Saud. The current mayor of Riyadh is Ibrahim Mohammed Al Sultan. He was appointed mayor in 2015. It has been designated a global city.