Singapore has become an acclaimed tourist hub of the world. Many factors have contributed to this including cultural diversity of the country, picturesque landscape,intoxicating mix of tradition and modernity, high standard of living, economic stability, effective law and order management, cleanliness, pollution-free environment despite large urban settlement and industrialization, religious and ethnic tolerance towards all, modern infrastructure and high-end transportation. English is one of Singapore's official languages and is spoken widely.The colonial past of the island nation contributed to interaction with Chinese, Malay, Arab and Indian ethnicities which enriched its cultural diversity. The state is very clean and environmentally friendly and conserves its natural and historical heritage. The public transport system is robust which covers most, if not all, of the public attractions.