In Erotic Center extending in Graz on 4-6 Zeillergasse see up to 32 girls who offer their erotic services in their own apartments.
In the corridors of running the house are photos of individual women, thereby spoiled for choice easier.
Thus, you can move freely in the house and search for a lady of their choice.
Each apartment is equipped with its own doorbell, the apartment is just the corresponding girl then in a private setting clarifies with you the potential service and the cost.
A sign on the door indicates whether the girl just "free" or "busy" is.