this is the university of maryland's surplus store. everything that the university does not use or need anymore gets shipped over to here, and they sell it at warehouse prices.
ever wanted one of those writing desks from college that is just a chair and a desk attached? twenty bucks here. huge blackboards are forty, old computers are very reasonably priced. this is the best place for buying old CRT monitors.
the store is really like a warehouse, most of it is furniture but you can get very awesome deals. be careful that you don't buy everything in sight though, that happens sometimes, especially during the first visit