Ottoman-medieval town on the Bregava river — UNESCO Radimlja necropolis and Begovina quarter.

Stolac is one of Herzegovina's oldest continuously inhabited settlements — evidence of human presence here dates back over 15,000 years. The town sits on the Bregava river, roughly 40 km southeast of Mostar and 20 km north of Trebinje. Population is around 17,000.
The town's historical layers make it unusual among Bosnian-Herzegovinian destinations: Illyrian (the Daorson ruins 5 km away, dating to the 4th century BC), Roman (a paved crossroads), Ottoman (the compact old town and its mosques), and Austro-Hungarian (the 19th-century administrative buildings). The 1992–95 war damaged much of the Ottoman heritage but restoration has been slow and partial.
The Begovina quarter is the Ottoman-era residential neighbourhood on a hillside above the Bregava. Traditional houses with enclosed stone courtyards and shaded gardens survive here in various states of repair. Several are privately occupied; a few are open as informal museums or small konoba restaurants.
Radimlja Necropolis is Stolac's UNESCO-listed medieval stećci tombstone cemetery, 3 km west of town on the road toward Čapljina. 133 carved limestone tombstones from the 15th and 16th centuries stand in an open field — some plain, some elaborately carved with human figures, crosses, hunting scenes, and geometric patterns. UNESCO added the Stećci sites (Radimlja is one of 30 across Bosnia, Croatia, Montenegro, and Serbia) to the World Heritage list in 2016. Entry is free; the site is open-air and accessible year-round.
Daorson — the Illyrian hill fort 5 km east of Stolac — is less visited but archaeologically remarkable. Cyclopean walls made of massive limestone blocks (up to 2 m long) date from the 4th century BC. The fort was the capital of the Daorsi tribe, documented in Greek and Roman sources.
For travellers: Stolac is off the main Kravica tour circuit. It's included as a custom stop on the Mostar Private Driver tour for travellers interested in Illyrian/medieval history or UNESCO sites. A typical Stolac + Radimlja detour adds about 1.5 hours to a Kravica day. The town has a handful of small restaurants and guesthouses; no large hotels.
Practical notes: the Bregava river runs cold and clear through the town centre — swimming is possible in summer at several informal spots. The town's weekly market (Saturdays) is one of Herzegovina's oldest still functioning.