Complex sentence: Built atop a leveled natural hill 1 kilometer long and 700 meters wide, the center of the site is characterized by a royal palace and several soaring temple-pyramids in addition to elite residences, and is noteworthy for its numerous monuments to the ancient Maya kings.
Split into simpler sentences: Built atop a leveled natural hill 1 kilometer long and 700 meters wide, the center of the site is characterized by a royal palace, several temple-pyramids, and elite residences. The site is noteworthy for its numerous monuments to the ancient Maya kings.