On December 20th, 1857, emperor Franz Joseph I. ordered to destroy the old city walls and to build a street which should show the glory of the Habsburg Empire. The old walls were a traffic block because in 1850, the suburbs became part of the city as districts II. till IX. The order of the emperor outlined the exact size of the boulevard, as well as the geographical positions and functions of the new buildings. The only building which was erected by the city was the Town Hall.