This joint ain't large. But it's cheap, convenient, and fun, and the twerps might actually learn something while they spend your hard-earned cash. Opened in 1992, the Explore Store sells rubber sea turtles ($2.50), snakes ($3.50), frogs (75 cents), and iguanas ($2.25, and they squeak). A real hand-painted iguana to scare your sister goes for $27. Plastic whales, octopuses, sharks, dolphins, and lobsters go for $1.25 each. Die-cast metal space shuttles on a stand with astronauts cost $22. Then there are wood kits to build everything from sea life to dinosaurs priced from $5 to $50. Or get a build-your-own-robot kit for $16.95. Hell, even if you don't buy anything, the store is next to the coolest gravity clock on planet Earth, the IMAX theater (DVDs of IMAX shows go for $30), and the Discovery Museum, where your kids can be distracted for hours while you sneak off to the Himmarshee pubs for a toot. Hours are 10:30 a.m. to 6 p.m. Monday through Thursday, 10:30 a.m. to 7 p.m. Friday, and noon to 7 p.m. Sunday.