The Transfiguration Cathedral is the oldest temple of Pereslavl-Zalessky and the earliest surviving architectural monument of the Vladimir-Suzdal school of architecture. It was founded by Yuri Dolgoruky in 1152. The Transfiguration Cathedral is one of the first stone structures erected in the middle of the 12th century after a long break in construction that came with the death of Vladimir Monomakh. In ancient times, it served as a tomb for the Pereslavl appanage princes. Here are the graves of the son of Alexander Nevsky, the great Vladimir prince Dmitry Alexandrovich and the grandson of the great commander, the Pereslavl appanage prince Ivan Dmitrievich. Currently, the Transfiguration Cathedral, as a unique monument of the history and culture of pre-Mongol Rus', requires a special regime of protection and operation, which can only be provided by a museum-reserve with its capabilities and experience in such activities.