In the Saturday Spotlight, we’re visiting Dallas’ newest museum. The Perot Museum of Nature and Science opens its doors on Saturday. Eleven permanent exhibit halls span the museum’s five floors, filled with everything from dinosaur skeletons to interactive kiosks. But on your first trip, you might have the most fun riding the glassed-in escalator on the side of the building. For a preview, check out Art&Seek guest blogger Gail Sachson’s post from earlier this week.