In recent years archeologists made a sensational discovery near the village of Starosel in central Bulgaria. They uncovered the enormous temple-grave of what is believed to be a Thracian ruler, possibly Sitalkes I, the first king of a combined Thracian empire. On this 5-hour trip you’ll stop first to visit the temple and then continue on to Hissaria, a small resort town noted for its hot mineral springs. Located near the Sredna Gora mountain range, it boasts a very mild climate and over 2 dozen mineral springs. The Starosel temple dates to the 4th or 5th century B.C. This impressive site is also known as the Starosel Thracian Cult Complex, as several tombs were discovered around the central temple. Hissar is one of the 3 international spa resorts in Bulgaria, and is also known for its Roman ruins. The ruins are visible everywhere, and include public buildings, a small amphitheater, the barracks of the Roman garrison and the best-preserved Roman fortress in the country. Take a walk in the town’s green parks and pass mineral hot springs, fountains and ruins.