21st February 2006, 12:42 PM
Have seen innovative displays preserved in basements - Holiday Inn in Bruges being best example. That said, in the UK I've seen some really crap attempts to preserve sites with glass floor type peep holes. Often they are unlit so you can see bugger all, and then when lit you get mould over the glass in no time. Anyway, the very process of excavation of most deposits means that you only know what you had once it's gone...