flight of steps dating from the 4th-5th century, at hierapolis ancient site in denizli province of turkey

aegean anatolia ancient archaeology archeology architecture block building byzantine civilization climb climbing construction culture curative denizli depopulation east element excavation flight greek heritage hierapolis hill historic history ladder landmark middle old pamukkale phrygia ravine remains roman ruined ruins site spa staircase stairway stairwell steps tourism travel travertine turkey turkish vertical walking world