Tlos. Tlos is an ancient ruined Lycian hilltop citadel near the resort town of Fethiye in the Mugla Province of southern Turkey, some 4 kilometres northwest of Saklikent Gorge. Tlos is believed to be one of the most important religious Lycian sites and settlement on the site is said to have begun more than 4,000 years ago. It is one of the oldest and largest settlements of Lycia and was subsequently inhabited by Romans, Byzantines and eventually Ottoman Turks, making it one of few Lycian cities to be continually inhabited up until the 19th century. Tlos lies on the east side of the Xanthos valley atop a rocky outcrop that slopes up from a plateau from a modern village, but ends on the west, north and northeast in almost perpendicular cliffs. The influence of many cultures upon Tlos has resulted in a patchwork of structures dominated by an acropolis and fortress. On the slopes leading up to the acropolis are numerous Lycian sarcophagi and many house-type of rock tombs and temple-type rock tombs cut into the rock face of the hill. One such is the Tomb of Bellerophon, a large temple-type tomb with an unfinished facade of four columns featuring a relief in its porch of the legendary hero Bellerophon riding on his winged horse so called as Pegasus. A carving of a lion or leopard is inside the tomb. At the top of the hill sits the remains of an acropolis and a Lycian fortress, which is evident by the remains of a Lycian wall and Roman-era wall. Since early Lycian times, the city's settlement was likely concentrated on the southern slope and western slopes. Wide terraces with cisterns and the back walls of buildings carved from the rock are found there, as well as an agora, a Roman-era theatre, for plays and concerts, public Roman baths and the remains of an early Byzantine church. At the foot of the hill is a Roman stadium with seating capacity for 2,500 people. Only the seats remain and the arena is now a local farmer's field. Granite columns were strewn about the area, which could indicate a columned portico on the north side of the arena. Parallel with the stadium is what researchers presume is two-storey, 150-metre long market more than 30 feet wide with small rectangular doors and large arched doors in its west wall. The building is constructed of carefully jointed ashlar masonry. At the south end is a wider building with several chambers and four large arched doors. There is also a palaestra to the right of the market hall complex with public baths on its other side. There are two adjacent baths, one smaller and one larger to its north consisting of three equal-size rooms. An apse with seven windows opens the most eastern room towards the south. This room could be the exedra in the public baths donated by Opramoas to Tlos and would date the back to 100-150 AD. There is also a Roman theatre with 34 rows of seats. A portion of the stage building still stands and there are many highly decorated carvings scattered all around. An inscription records that donations have been made for the theatre from private citizens and religious dignitaries, ranging from 3,000 denarii by the priest of Dionysus and high priest of the Cabiria to lesser donations of 100 denarii. The philanthropist Opramoas also made a very large donation for the theatre. It is also known from inscriptions that the theatre was under construction for at least 150 years. The smaller public bath comprises three rooms: two are in the western part of the building and the third is a large rectangular room to the east. Another room to the west may have been part of the complex. All the rooms had barrel-vaulted ceilings. To the north of the smaller bath stood a palaestra. Also near the baths are the remains of a Byzantine church, temple and what is believed to have been the agora. The latter is located across the road from the theatre. Tlos was one of the six principal cities of Lycia. The city was dubbed the very brilliant metropolis of the Lycian nation during the Roman period. There is evidence that Tlos was a member of the Lycian League, to which in 168 BC Rome granted autonomy instead of dependence on Rhodes.