Aurangabad is a city in the Aurangabad district of Maharashtra, India. Aurangabad (meaning "Built by the Throne") is named after the Mughal Emperor Aurangzeb. The city is a tourism hub, surrounded by many historical monuments, including the Ajanta Caves and Ellora Caves, which are UNESCO World Heritage Sites, as well as Bibi Ka Maqbara. The administrative headquarters of the Aurangabad Division or Marathwada region, Aurangabad is nicknamed "City of Gates" and the strong presence of these can be felt as one drives through the city. Recently, Aurangabad has been declared as Tourism Capital of Maharashtra. It is also one of the fastest growing cities in the world; by population it is the 5th largest city in Maharashtra, after Mumbai, Pune, Nagpur and Nashik.