This Beriev BE-6 sea-plane converted to a monument is located in te city of Myrnyi in Ukraine.
It's unsure if this plane is actually abandoned, but it doesn't seem to be maintain anymore even as a monument. I really like its frozen ghost appearance. frozen just on the take off. At a certain point the plane fell of its base, and the look of it was even more pathetic.
I found some information on this plane on Ruud Leeuw website : This Beriev Be-6's NATO nickname was "Madge". First flight from water was made 14Nov47. A twin-engined patrol flying boat, It stayed in service until the late 1960s.
coordinates : 45°19'34.92"N 33°02'04.97"E
pictures sources : 1 2 3 4 5
text source : 1