Automotive, technology and research, services, consulting, media and creative industries complement the economic base.
It is home to the European Central Bank, Deutsche Bundesbank, Frankfurt Stock Exchange and several large commercial banks.
Messe Frankfurt is one of the world's largest trade fairs.
Major fairs include the Frankfurt Motor Show, the world's largest motor show, the Music Fair, and the Frankfurt Book Fair, the world's largest book fair.
Frankfurt Central Station is one of the largest rail stations in Europe and the busiest junction operated by Deutsche Bahn, the German national railway company, with 342 trains a day to domestic and European destinations.
Frankfurt has many high-rise buildings in the city centre, forming the Frankfurt skyline.
one that a computer program or persistent individual won't easily be able to guess in a short period of time.