Hacker News Reader

The Deutsches Technikmuseum in Berlin has a reconstruction of the Z1.

http://www.sdtb.de/Mathematics-and-Computer-Science.1256.0.h...

I can highly recommend a visit there. Not only you can see an original Z4 and a replica of the Z3, but also lot's of more science and history related exhibitions. Don't miss the Enigma!

Among the more impressive specimens, you can also see an A4 rocket (better known as V2).

Z22 is at ZKM in Karlsruhe, but Deutsches Museum has a whole department on Z3 and related machines. I can highly recommend it to anyone interested in (very) early computers!