The most significant relic that Stavrovouni Monastery possesses is a piece of the Holy Cross, left at the monastery by Saint Helena. There are references from several sources which report that the Holy Cross used to stand unsupported in the air. Nowadays, the remaining piece of the Cross is kept within a large silver cross. Other relics left at the monastery by Helena include the Cross of the Good Thief, a nail, and, according to some sayings, a part of the rope that had bound Jesus to the Cross.