This 19th-century church used to served as a planetarium in the Soviet times. Currently, it is used by Armenian diaspora again.
Batumi tourism website http://gobatumi.com/en/feelit/about-batumi/sightseeing?product=90
Address K. Gamsakhurdia Street 25, Batumi 6006, Georgia
Coordinates 41°38'58.716" N 41°38'20.358" E