Think science is boring? Then check out Dr. Einstein's, where you can pick up all kinds of nifty gear, from videoscopes to books on Elvis, Rubik snakes, and Hoberman toys, a weirdly charming set of building blocks inspired by Legos. The prices are affordable and there's a wide selection appealing to all ages. So when you think toys (at least Dr. Einstein's toys), don't just think kids.