Up at the science and tech department of Auckland Uni, they have a little showroom on each floor! They have everything from nearly every major revision of Macintosh and other Apple computers.
From memory, some of the more significant machines were a IBM 1620, with punch card reader, and populated plugboards, some pretty crazy Burroughs stuff, like a fixed head hard drive and a modular 286, awesome IBM 3D graphics rendering machines, part of what I recall to be a System/360 22 (maybe) and other awesome stuff. Portable TRS80 looked neat!
There's a website here
with some of the stuff, but it's wayyyyy better in real life.
Also, there are a few piles of networking gear, all the way from a funky VT100 terminal straight out of the 70's and lots of 90's servers.
Amiga 4000: Apollo Turbo 040, 128MB Fast, 40gb HDD, CD-ROM (needs internet)
C64: 1541U-II, MixSID, WiFi, LumaFix64
ZX Spec, A1200, CD32, MacPlus/SE, A500, BBC Turbo Master (NASA), 2600, Acorn 4000, VIC-20, IBM 5155, GameBoy