Asia is home to the majority of humanity, lively cities, sublime landscapes and almost endless options. Asia varies from the mega-cities and technology capitals of East Asia to the magnificent monuments in South Asia, and from the beach bungalows and jungle treks of Southeast Asia to the desert ruins and modern mega-malls of the Middle East.
Singapore is a city-state in Southeast Asia. Founded as a British trading colony in 1819, since independence it has become one of the world's most prosperous countries and boasts the world's busiest port.
Central Asia is most notable for being home to the '-stans': Rugged countries with limited arable land, historically coveted for their position between Europe and East Asia, rather than for their resources.
There are four overland routes to Lhasa from the four cardinal directions. Two will not be discussed here: For more on those, and on the routes below, see the Tibet article and the Tibetan journeys itinerary.