Thessalonica.

Acts 20:4
Paul was accompanied by Sopater son of Pyrrhus from Berea, Aristarchus and Secundus from Thessalonica, Gaius from Derbe, Timothy, and Tychicus and Trophimus from Asia.

Acts 27:2
We boarded an Adramyttian ship about to sail for ports along the coast of Asia, and we put out to sea. Aristarchus, a Macedonian from Thessalonica, was with us.

Philippians 4:16
For even while I was in Thessalonica, you provided for my needs once and again.

1 Thessalonians 1:1
Paul, Silvanus, and Timothy, To the church of the Thessalonians in God the Father and the Lord Jesus Christ: Grace and peace to you.

2 Thessalonians 1:1
Paul, Silvanus, and Timothy, To the church of the Thessalonians in God our Father and the Lord Jesus Christ:

2 Timothy 4:10
because Demas, in his love of this world, has deserted me and gone to Thessalonica. Crescens has gone to Galatia, and Titus to Dalmatia.

where.

Acts 14:1
At Iconium, Paul and Barnabas entered the Jewish synagogue as usual, and they spoke so well that a great number of Jews and Greeks believed.

Acts 15:21
For Moses has been proclaimed in every city from ancient times and is read in the synagogues on every Sabbath."

Acts 16:13
On the Sabbath we went outside the city gate along the river, where it was customary to find a place of prayer. After sitting down, we spoke to the women who had gathered there.