Far more nostalgic: NCSA Mosaic on OpenVMS running on a VAX, and that's feasible by running on the simh VAX emulator on your (Mac OS X, Linux, Windows) box.
This should come as a comfort to people who fear IE6 will never go away.
Mosaic at one point was used by a majority of web users and look now- no one cares about compatibility. People moved on and it is no longer in current use and no one would expect that your site should display properly in it.
http://vaxa.wvnet.edu/vmswww/vms_mosaic.html http://simh.trailing-edge.com/ http://www.openvmshobbyist.org/ http://www.decuserve.org/
Total cost of this nostalgia is US$30 for the OpenVMS VAX CD. Mosaic, simh and the OpenVMS Hobbyist licenses are free.