The Church of St. Constantius in Jezera was built at the end of the 18th century. St. Constantius is a protector against malaria, a disease from which the inhabitants of Jezera often died. Legend has it that the stones for building the church were carried by malaria sufferers. In the third stage of malaria, the patient has a high fever. Thus, patients dressed in thick clothes would carry stones along the hill, during the summer heat. Sweating, they would reach the top and recover because the cause of malaria dies at a body temperature of 39-40 ° C. The church was badly damaged during World War II, but was rebuilt in 1994 at the initiative of the locals.