The Prudential Center shopping mall in Boston, Mass. has a nice display of Phyllostachys rubromarginata and a couple other 'boos. They were provided and installed by New England Bamboo Company four or five years ago.
If you're in Boston, it's worth a visit. Easy to access on the subway (Green Line B, C or D train to the Copley Square stop, or Green Line E train to the Prudential stop).
You can get a glimpse in photos on New England Bamboo's website -- http://www.newengbamboo.com/nebc/installations.htm
A nice large phyllostachys grove is also at Avant Gardens in N. Dartmouth, Mass., and a smaller but charming one at Blithewold (an estate museum and gardens) in Bristol, RI.