Correct, researchers found scars in the roof and remains of an old ladder that led to a bell tower. The bell tower was put up during a time when the synagogue was used as a place of worship for a group of Lithuanian Catholics. After they got their own church and moved out, the building was once again used as a synagogue and the bell tower was removed.
Now, let’s head downstairs to the basement which has previously been used as a meeting space, office, classroom, and social hall.