Real money buffs (and who among us isn't?) may want to make a brief stop here. The exhibits housed in this petite Smithsonian-affiliate museum include numismatic and vintage ticker-tape displays; murals and photos depicting historic Wall Street scenes; and interactive financial news terminals, in partnership with CNNfn, so little bulls and bears can learn how to keep up with the market. Temporary installations have run the gamut from "Morgan," a chronicle of the lasting influence of J. Pierpont Morgan to "High Notes," an oddly compelling exhibit of high-denomination currency.