Frankfurt am Main is the largest city in the German state of Hesse and the fifth-largest city in Germany, with a 2015 population of 731,095 within its administrative boundaries. The urban area called Frankfurt Rhein-Main has a population of 2,221,910. The city is at the centre of the larger Frankfurt Rhine-Main Metropolitan Region which has a population of 5,500,000 and is Germany’s second-largest metropolitan region. Since the enlargement of the European Union in 2013, the geographic centre of the EU is about 40 km (25 mi) to the east.
Frankfurt is a global hub for commerce, culture, education, tourism and traffic. It is the most important financial centre of the European continent, with the HQs of the European Central Bank, German Federal Bank, Frankfurt Stock Exchange, Deutsche Bank, Commerzbank, DZ Bank, KfW, several fintech startups and other institutes. Messe Frankfurt is one of the world’s largest trade fairs. Major fairs include the Frankfurt Motor Show, the world’s largest motor show, and the Frankfurt Book Fair, the world’s largest book fair.
Frankfurt is home to many cultural and educational institutions, including the Goethe University and Frankfurt University of Applied Sciences, many museums (e.g., Städel, Senckenberg Natural Museum, Liebieghaus, Goethe House) and two major botanical gardens: the Palmengarten and the Botanical Garden of Goethe University. Frankfurt is culturally and ethnically diverse, with around half of the population, and a majority of young people, having an immigrant background and a quarter of the population being foreign nationals.