For a beloved holiday go-to attraction, take your sleigh ride to The Comcast Holiday Spectacular. You can’t beat the free 15-minute shows presented on a huge “The Comcast Experience” video wall featuring holiday sing-alongs, performances by the Philadelphia Ballet, and an enchanted sleigh ride around the world. Brand-new this holiday are short films featuring characters from Shrek called “DreamWorks Shrek’s Festive Flight” at The Universal Sphere.™ Escape with Shrek, Donkey, Gingy, and friends on a journey from Philadelphia to the North Pole. After arriving at the North Pole Bakery, decorate your gingerbread cookies in an interactive digital experience, and watch your creations come to life on screen. Free but advanced reservations are recommended; daily, from 10 a.m. EST to 8 p.m. EST. (Christmas Day & New Year’s Day, noon to 5 p.m.) Comcast Technology Center /Comcast Center lobby, 1800 Arch Street. Comcast.com or theuniversalsphere.com.