Stećci are monumental medieval tombstones found primarily in Bosnia and Herzegovina, but also in Croatia, Serbia, and Montenegro. They’re enormous - some of them weigh as much as 30,000 kg (about 73,000 lbs), and are carved with motifs and symbols (such as farmers, warriors, dancers, suns, crosses, and trees) that are not well-understood today. Inscriptions were made in Bosnian Cyrillic.