Tashkent, the nation's capital and largest city, has a four-line metro built in 1977, and expanded in 2001 after ten years' independence from the Soviet Union. Uzbekistan and Kazakhstan are currently the only two countries in Central Asia with a subway system. It is promoted as one of the cleanest systems in the former Soviet Union. The stations are exceedingly ornate. For example, the station ''Metro Kosmonavtov'' built in 1984 is decorated using a space travel theme to recognise the achievements of humankind in space exploration and to commemorate the role of Vladimir Dzhanibekov, the Soviet cosmonaut of Uzbek origin. A statue of Vladimir Dzhanibekov stands near a station entrance.