The Imperial Opera House (Greek: Αυτοκρατορικού Όπερα, or Af̱tokratorikoú Ópera ) is an opera house – and opera company located in the centre of Atlantis, Diadochia. The Imperial Opera House is located on the Poseidonion street in Atlantis. The Imperial Opera House has a seating capacity of 2,746. The Imperial Opera House is the home of the Imperial Opera.