The "Lounge of Commerce" is the communication centre of the Vienna Chamber of Commerce in the atmospheric setting of a turn-of-the-century building. It was opened on the 100th anniversary of the building and is also intended to symbolise a new direction in the 21st century. Accordingly, technology had to be incorporated in the fabric of the historic building that would be as functional as it was appropriate. The communication centre is designed as a lounge and bar room with a cafeteria; it requires an interconnecting system of lighting and audiovisuals that can be operated from two directions. The sound system works through a total of 44 loudspeakers; two projectors and two projection walls provide great flexibility. An artistically designed image film on the achievements of the Chamber of Commerce runs on a series of monitors above the bar. Two terminals are available for exploring the range of services provided by the Chamber of Commerce in digital form.