Warsaw (Polish: Warszawa [varˈʂava] (About this sound listen); see also other names) is the capital and largest city of Poland. The metropolis stands on the Vistula River in east-central Poland and its population is officially estimated at 1.765 million residents within a greater metropolitan area of 3.101 million residents, which makes Warsaw the 8th most-populous capital city in the European Union. The city limits cover 516.9 square kilometres (199.6 sq mi), while the metropolitan area covers 6,100.43 square kilometres (2,355.39 sq mi).[5] Warsaw is an alpha global city, a major international tourist destination, and a significant cultural, political and economic hub. With a GDP PPP of $230 billion and $43,200 per capita, it is one of the wealthiest capital cities in Central and Eastern Europe. Moreover, its historical Old Town was designated a UNESCO World Heritage Site.