The three-hall congress centre consists of large hall, small hall (or cinema) and hotel part which contains some small saloons.
The map is modded. The main mod is Electrical age, mod which adds real electricity in minecraft and allow me to build super realistic light system and much more!

Actual progress:

• Large hall - almost completed (80%)
• Small hall - build, but not electrified (50%)
• Hotel part - not build yet (0%)
• Entrance hall and electrical substations - (60%)