Warsaw is the capital and largest city of Poland. It is located on the Vistula River roughly 260 kilometers from the Baltic Sea and 300 kilometers from the Carpathian Mountains. In 2012 the Economist Intelligence Unit ranked Warsaw as the 32nd most liveable city in the world. It was also ranked as one of the most liveable cities in Central Europe. Today, Warsaw is considered an "Alpha–global city'', a major international tourist destination and a significant cultural, political and economic hub. Warsaw's economy, by a wide variety of industries, is characterised by FMCG manufacturing, metal processing, steel and electronic manufacturing and food processing. The city is a significant centre of research and development, BPO, ITO, as well as of the Polish media industry. The Warsaw Stock Exchange is one of the largest and most important in Central and Eastern Europe. Frontex, the European Union agency for external border security, has its headquarters in Warsaw. It has been said that Warsaw, together with Frankfurt, London, Paris and Barcelona is one of the cities with the highest number of skyscrapers in Europe. Warsaw has also been called "Eastern Europe’s chic cultural capital with thriving art and club scenes and serious restaurants".