Xanthos. Turkey. The inscribed Lycian pillar monument which dates from 5th century BC. Erected for a distinguished citizen, the pillar monument is inscribed on four sides with Lycian text with has a summary in ancient Greek text on the north side. Xanthos, the once great ancient centre of the Lycian Federation is located in the Antalya Province in the south Aegean region of Turkey. Xanthos together with the nearby cult centre of Letoon are designated a Unesco World Heritage Site.