More than just an enclave within the city of Rome, the Vatican is a complex city-state that for many people still conjures up notions of secrecy. The Vatican has always exercised powers of fascination and seduction over us, with its history stretching back nearly twenty centuries, its spirituality, its scandals and its enigmas. As a fantasy world, it has inspired cinematic visions from Federico Fellini’s Roma to Francis Ford Coppola’s The Godfather: Part III and Paolo Sorrentino’s The New Pope. But what is the real Vatican?