Singapore (i/ˈsɪŋɡəpɔːr/), officially the Republic of Singapore, and often referred to as the Lion City, the Garden City, and the Red Dot, is a global city in Southeast Asia and the world's only island city-state. It lies one degree (137 km) north of the equator, at the southernmost tip of continental Asia and peninsular Malaysia, with Indonesia's Riau Islands to the south. Singapore's territory consists of the diamond-shaped main island and 62 islets. Since independence, extensive land reclamation has increased its total size by 23% (130 km2), and its greening policy has covered the densely populatedisland with tropical flora, parks and gardens.