When Paul traveled, he had a habit of visiting one specific place first. Which place was it?

Although Paul’s unique calling and ministry was to the Gentiles (Rom. 11:13), the great apostle recognized the principle of Romans 1:16. We see this from the book of Acts: whenever he visited a new city, he would follow the common practice of first visiting that city’s synagogue. We see this as ten separate events as his mission begins in Acts 13:2–3. Paul goes to the Jews first when visiting Salamis, (13:4–5) and when they came to Antioch of Pisidia; (13:14).
Then, as he traveled, he visited Iconium (14:1), Philippi (16:11–13), Thessalonica (17:1–2), Berea (17:10), Athens (17:16–17), Corinth (18:1–4), Ephesus (19:1, 8), and Rome (28:16–17). At each of these cities, he first visited a synagogue.