Hierapolis

"Sacred city, a city of Phrygia, where was a Christian church" "under the care of Epaphras (Col. 4:12, 13). This church was" founded at the same time as that of Colosse. It now bears the "name of Pambuk-Kalek, i.e., "Cotton Castle", from the white" appearance of the cliffs at the base of which the ruins are found.

Definition of Hierapolis:
"holy city"