Because the medieval Kingdom of Croatia was governed by rulers based further south, in areas closer to the Adriatic Sea coast, there are few Early and High Middle Ages monuments preserved in the region—most of them date back to the Late Middle Ages and later periods. There are, however, archaeological sites with features from prehistory and classical antiquity.
The lack of Early and High Middle Ages monuments in Croatia is attributed to the location of its rulers further south, near the Adriatic Sea coast, which resulted in a scarcity of these structures.  Archaeological sites with features from prehistory and classical antiquity are found in the region despite this.