The Anchiskhati Basilica of St Mary is the oldest surviving church in Tbilisi, Georgia. It belongs to the Georgian Orthodox Church and dates from the sixth century.
Wikipedia https://en.wikipedia.org/wiki/Anchiskhati_Basilica
Address იოანე შავთელის შესახვევი, თბილისი, Georgia
Coordinates 41°41'43.918" N 44°48'24.748" E