The tower has 51 floors, serves both commercial and residential purposes, and is the focal point of a complex known as "Millennium City".

The remaining area is to 2 levels are generally available and is used for a shopping center (Millennium City), restaurants and a multiplex cinema (UCI).

The shape of the tower is formed by two clasped each other fully glazed cylinder which is supported by a steel composite structure.

Other tenants include: inter alia Cirquent, Trivadis, CSC, Carlson Wagonlit, Inode (UTA), Agip and Cisco.

As part of the building was also built up its own internal telecommunications infrastructure, in which case the MCN Millennium Communication Network AG acted as a telephone and Internet service provider.