PHILADELPHIA - Date night in the city is not just for singles; there is a lot to do for couples in Philadelphia this spring. There are several things you can do to impress your date. A newly-opened museum is a great place to start. The Museum of Illusions is an interactive museum with over 80 exhibits. You can explore optical illusions, stereograms, and holograms. Afterward, you can go to a nearby restaurant to enjoy some light bites.