As the interest of the public for new forms of media grows, museums and theme parks select real time Virtual Reality productions as their presentation medium. Based on threedimensional graphics, interaction, sound, music and intense story telling they mesmerize their audiences. The Foundation of the Hellenic World (FHW) having opened so far to the public three different Virtual Reality theaters, is in the process of building a new Dome-shaped Virtual Reality theatre with a capacity of 130 people. This fully interactive theatre will present new experiences in immersion to the visitors. In this paper we present the challenges encountered in developing productions for such a large spherical display system as well as building the underlying realtime display and support systems. Categories and Subject Descriptors I.3.7 [Computing Graphics]: Three-dimensional Graphics and Realism – virtual reality. I.3.2 [Computing Graphics]: Graphics Systems – distributed/network graphics. I.3.6 [Compu...