Acts 16:14-15 mentions that when Paul and Silas were in Philippi, a woman named Lydia, who was a seller of purple cloth from Thyatira, listened to Paul's preaching and came to faith in the Lord, and invited them to stay with her. 

“...And a certain woman named Lydia, a seller of purple, of the city of Thyatira, which worshipped God, heard us...." (Acts 16:14)

The modern Turkish city of Akhisar stands on the location of ancient Thyatira.

Main Attractions

Tepe Mezarligi (Hill Cemetery)

Hastane (Hospital) Mound

The archaeological remains of the city of Thyatira are enclosed within a fenced archaelogical park in a residential neighborhood of Akhisar, with easy access to for tourists to walk around and view the remains of ancient Roman era basicallica, and some columns and other remains from the first couple centuries AD. 

References:

https://en.wikipedia.org/wiki/Thyatira

https://www.hmdb.org/marker.asp?marker=119765

https://www.tripadvisor.com/ShowUserReviews-g1156331-d4593441-r360298146-Tepe_Mezari-Akhisar_Manisa_Province.html