Constantinople - The Great Cathedral of Hagia Sofia

Justinian is considered a hugely important moment in history. He takes the throne in 527, reigns until 565. The Great Cathedral of Hagia Sofia was the biggest building in Europe until the Renaissance. It's dazzling, absolutely breathtaking as an architectural structure, but also as a health God. You find visitors to Constantinople say that they walk inside and it's as though the roof hobbers are being suspended over the rest of the structure.