Since the ’70 Vienna has taken up the political, economic and planning actions heading to make the city the significant European business centre. The mentioned above has been realised by development of the modern workplaces connected with generating, transforming, distributing and commercialising information, it is to say by developing the office and conferencing functions. The first was built the Uno-City, then it was recreated into the multifunctional business plot with the office function as the main, namely the Donau-City. With the business area of more than 11mln squaremetres, Vienna is the biggest centre of this type in the eastern part of the European Union, and within the limits of Donau-City there have been risen many interesting architectural objects. The six of them are presented in the article.