Kuala Lumpur (; Malaysian: [ˈkwalə ˈlumpʊr]), officially the Federal Territory of Kuala Lumpur (Malay: Wilayah Persekutuan Kuala Lumpur), or commonly known as KL, is the national capital of Malaysia as well as its largest city. The only global city in Malaysia, it covers an area of 243 km2 (94 sq mi) and has an estimated population of 1.73 million as of 2016. Greater Kuala Lumpur, also known as the Klang Valley, is an urban agglomeration of 7.25 million people as of 2017. It is among the fastest growing metropolitan regions in South-East Asia, in both population and economic development. Kuala Lumpur is the cultural, financial and economic centre of Malaysia and home to the Parliament of Malaysia, and the official residence of the Malaysian King (Yang di-Pertuan Agong), the Istana Negara. The city once held the headquarters of the executive and judicial branches of the federal government as well, but they were moved to Putrajaya in early 1999. Some sections of the judiciary still remain in Kuala Lumpur. Kuala Lumpur is one of three Federal Territories of Malaysia, enclaved within the state of Selangor, on the central west coast of Peninsular Malaysia. Since the 1990s, the city has played host to many international sporting, political and cultural events including the 1998 Commonwealth Games. Kuala Lumpur has undergone rapid development in recent decades. It is home to the tallest twin buildings in the world, the Petronas Twin Towers, which have become an iconic symbol of Malaysia's futuristic development. Kuala Lumpur has a comprehensive road system that is supported by extensive public transport networks such as the Mass Rapid Transit (MRT), Light Metro (LRT), Bus Rapid Transit (BRT), monorail, commuter rail and airport rail link. Kuala Lumpur is one of the leading cities in the world for tourism and shopping. It is the eighth most visited city in the world. The city is also home to three of the world's 10 largest malls.Kuala Lumpur has been ranked by the Economist Intelligence Unit's Global Liveability Ranking at No. 70 out of 140 global cities, and second in Southeast Asia after Singapore at No. 35. EIU's Safe Cities Index of 2017 also put Kuala Lumpur 31st out of 60 on its world safest cities list. Kuala Lumpur was named as one of the New7Wonders Cities. UNESCO also have named Kuala Lumpur as World Book Capital 2020."