Passing through the quiet streets of ancient Samarkand, you can find the local sininaoga. You can even go in here and a local security guard can show you everything.
From his words, there are about 100 Jews left here and they don't come here. You can see a lot of interesting things inside. A tetragrammaton of four letters is often found, which means the proper name of the God YHVH, forming a name with others-Heb. There is an old Talmud.
So don't pass it by.