#1 Hierapolis Theatre (Denizli)
The Hierapolis Theatre, located near Denizli in Türkiye, is a well-preserved ancient structure that once held 12,000 spectators. Built under Hadrian, it features marble seating and a stage wall adorned with mythological friezes. From the top, views overlook the famous limestone terraces of Pamukkale, highlighting the contrast between Roman architecture and the natural landscape.