Photo taken on Aug. 21, 2019 shows parts of the ancient city of Sagalassos, near the town of Aglasun in Burdur province, Turkey. The archaeological site of Sagalassos is located in southwest Turkey. The ancient city was founded on the south facing slopes of the Taurus mountain range. The first traces of hunter/gatherers in the territory of Sagalassos date back to some 12,000 years BP, according to the UNESCO. (Photo by Mustafa Kaya/Xinhua)

Visitors walk in the ancient city of Sagalassos, near the town of Aglasun in Burdur province, Turkey, on Aug. 21, 2019. The archaeological site of Sagalassos is located in southwest Turkey. The ancient city was founded on the south facing slopes of the Taurus mountain range. The first traces of hunter/gatherers in the territory of Sagalassos date back to some 12,000 years BP, according to the UNESCO. (Photo by Mustafa Kaya/Xinhua)

Photo taken on Aug. 21, 2019 shows parts of the ancient city of Sagalassos, near the town of Aglasun in Burdur province, Turkey. The archaeological site of Sagalassos is located in southwest Turkey. The ancient city was founded on the south facing slopes of the Taurus mountain range. The first traces of hunter/gatherers in the territory of Sagalassos date back to some 12,000 years BP, according to the UNESCO. (Photo by Mustafa Kaya/Xinhua)

Visitors walk in the ancient city of Sagalassos, near the town of Aglasun in Burdur province, Turkey, on Aug. 21, 2019. The archaeological site of Sagalassos is located in southwest Turkey. The ancient city was founded on the south facing slopes of the Taurus mountain range. The first traces of hunter/gatherers in the territory of Sagalassos date back to some 12,000 years BP, according to the UNESCO. (Photo by Mustafa Kaya/Xinhua)

Photo taken on Aug. 21, 2019 shows parts of the ancient city of Sagalassos, near the town of Aglasun in Burdur province, Turkey. The archaeological site of Sagalassos is located in southwest Turkey. The ancient city was founded on the south facing slopes of the Taurus mountain range. The first traces of hunter/gatherers in the territory of Sagalassos date back to some 12,000 years BP, according to the UNESCO. (Photo by Mustafa Kaya/Xinhua)

Visitors sit in the ancient city of Sagalassos, near the town of Aglasun in Burdur province, Turkey, on Aug. 21, 2019. The archaeological site of Sagalassos is located in southwest Turkey. The ancient city was founded on the south facing slopes of the Taurus mountain range. The first traces of hunter/gatherers in the territory of Sagalassos date back to some 12,000 years BP, according to the UNESCO. (Photo by Mustafa Kaya/Xinhua)

Photo taken on Aug. 21, 2019 shows parts of the ancient city of Sagalassos, near the town of Aglasun in Burdur province, Turkey. The archaeological site of Sagalassos is located in southwest Turkey. The ancient city was founded on the south facing slopes of the Taurus mountain range. The first traces of hunter/gatherers in the territory of Sagalassos date back to some 12,000 years BP, according to the UNESCO. (Photo by Mustafa Kaya/Xinhua)

People visit the ancient city of Sagalassos, near the town of Aglasun in Burdur province, Turkey, on Aug. 21, 2019. The archaeological site of Sagalassos is located in southwest Turkey. The ancient city was founded on the south facing slopes of the Taurus mountain range. The first traces of hunter/gatherers in the territory of Sagalassos date back to some 12,000 years BP, according to the UNESCO. (Photo by Mustafa Kaya/Xinhua)