Mainhattan is a term referring to Frankfurt's skyline, especially that of its central business district, the Bankenviertel.
Together with the historically important Imperial Cathedral of Saint Bartholomew and St. Paul's Church, these buildings form the skyline of the city.
Banks and other financial institutions settled there, which resulted in the district also being referred to as "Bankfurt" (Bankford).
The Commerzbank Tower was the tallest building in the European Union until the Shard in London was built.
After the United Kingdom voted to withdraw from the European Union (Brexit), plans were made for several financial institutions to move from the City of London to Mainhattan.