The Orthodox cathedrals of Nizhny Novgorod are the city's largest churches, which served as the spiritual and architectural centers of their eras. This theme is especially significant for Nizhny Novgorod: the cathedrals stand at key points of the urban landscape and are inseparable from the city's appearance. Among them are the Alexander Nevsky Cathedral on the Strelka, at the confluence of the Oka and Volga rivers, and the Cathedral of the Transfiguration of the Savior, known as the Staroyarmarochny (Old Fairground) Cathedral, associated with the history of the Nizhny Novgorod Fair.