There's an AN-22 up a pole (sorry - up lots of poles!) at the Technik Museum in Speyer not far south of Frankfurt, well worth a visit, also for the town and cathedral. It must have been a most spectacular site as it landed at the small Flugplatz across the road from the museum.
Go to
http://www.technik-museum.de/, click on Speyer and Archiv 2001. The museum also houses one of the TU-144s which is also in that Archiv.
cheers