Are the cities Paul ministered to in Asia Minor still around today?
No, the cities Paul ministered to in Asia Minor are not still around today. The context notes that none of those little cities are left anymore, not a one of them; they all faded off the scene in western Turkey. In contrast, many areas in Greece remain valid.
Les explains that Greece was Europe, while Asia Minor was the Asia of the New Testament. Paul had started many churches there, such as Thyatira, Pergamos, and Smyrna. Yet by the time he was martyred, they had evidently turned away from his gospel. Les notes that none of those little cities are left anymore, not a one of them. Many areas in Greece are still valid—Philippi is still a seaport, Athens is still valid, and Corinth has another city next to the ancient one. But back in western Turkey, nothing; it all faded off the scene.