Write in a book what you see and send it to the seven churches, to Ephesus, to Smyrna, to Pergamum, to Thyatira, to Sardis, to Philadelphia, and to Laodicea. (Revelation 1:11)
It should be understood that "churches" in this context refers to the community of Christians living in each city, and not merely to the building or buildings in which they gathered for worship.
The seven churches are located in:
- Smyrna, modern day Izmir
- Pergamum, modern-day Bergama
- Thyateira, modern-day Akhisar
- Philadelphia, modern-day Alasehir
- Laodicea, near modern-day Denizli