Kosti, Burgas Province

It is located on the banks of the Veleka River in the Strandzha mountains not far from the Turkish border, 20-25 kilometres south of Tsarevo and 91 km southeast of Burgas.

Traces of ancient metallurgical activity have been discovered in the vicinity of Kosti, as well as a big necropolis and several independent mounds of Thracian origin.

Kosti was one of the Greek villages of inland Strandzha, culturally and linguistically very distant from then-Greek-inhabited nearby coastal towns like Tsarevo (Vassiliko) and Ahtopol.

The houses in Kosti typically have two stories of crude stone, with the top floor cased with thick oak boards.

They feature an unusually large fireplace on the top floor and the reported lack of any windows (which were later added by the Bulgarians who settled), as the only light to enter the room would come from a small opening in the ceiling called okno.