My wife and I saw this chuck on a tour, but didn't go inside. The building was quite impreeive and one of the things I remember about Estonia.
This cathedral stands atop the hill at the edge of old town. It is not like anything else we've seen with its bulbous black roof. The inside is nice but the views from the outside are just as good.
Nice Orthodox Church on the hill....quite eye-catching from a distance and only 10mins walk from Old Town