I did a tour around Berlin and there’s two (technically one that’s copy-pasted) Soviet war memorials that I can’t find a record of existing. One is located in a park just behind the TV tower and train station. A carbon copy of it is on a hill somewhat north-ish of the city on the outskirts. It’s a slightly curved pillar with a red star on it, two walls on either side stating “1941” and “1945,” with an eternal flame in the center.