Kuala Lumpur (Malaysian pronunciation: [ˈkualə, -a ˈlumpo(r), -ʊ(r)]), officially the Federal Territory of Kuala Lumpur (Malay: Wilayah Persekutuan Kuala Lumpur) and commonly known as KL, is the national capital and largest city in Malaysia. As the global city of Malaysia, it covers an area of 243 km2 (94 sq mi) and has an estimated population of 1.73 million as of 2016[update]. Greater Kuala Lumpur, also known as the Klang Valley, is an urban agglomeration of 7.25 million people as of 2017[update]. It is among the fastest growing metropolitan regions in Southeast Asia, in both population and economic development. Kuala Lumpur is the cultural, financial and economic centre of Malaysia. It is also 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, but these were relocated to Putrajaya in early 1999. However, some sections of the political bodies still remain in Kuala Lumpur. Kuala Lumpur is one of the 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 and the 2017 Southeast Asian Games. Kuala Lumpur has undergone rapid development in recent decades and is home to the tallest twin buildings in the world, the Petronas Towers, which have since become an iconic symbol of Malaysian development. Kuala Lumpur has a comprehensive road system supported by an extensive range of public transport networks, such as the Mass Rapid Transit (MRT), Light Metro (LRT), Bus Rapid Transit (BRT), monorail, commuter rail and an airport rail link. Kuala Lumpur is one of the leading cities in the world for tourism and shopping, being the tenth most-visited city in the world in 2017. The city houses three of the world's ten largest shopping malls. Kuala Lumpur has been ranked by the Economist Intelligence Unit's Global Liveability Ranking at No. 70 in the world, and No. 2 in Southeast Asia after Singapore. EIU's Safe Cities Index of 2017 rated Kuala Lumpur 31st out of 60 on its world's safest cities list, safer than Beijing or Shanghai. Kuala Lumpur was named as one of the New7Wonders Cities, and has been named as World Book Capital 2020 by UNESCO.