Sightseeing: The main cultural landmark is the national archaeological reserve "Augusta", situated in the area of "Kaleto" around 5 km north of the Harlets. The reserve was declared a cultural monument. The earliest remains recorded in the object to the late Bronze Age. The first settlement is in Thracian times that existed until the establishment of Roman rule in the region. The village was destroyed and restored consistently on first and second Gothic invasions in III-IV century. Later, on the ruins of "Augusta" was formed Slav-Bulgarian settlement.