Lowry Park Zoo does special events for Halloween and Christmas, with a hard-ticket admission required ($13 adults, $11 kids).
It's mostly decorations rather than special attractions for Christmas (the Halloween party boasts several mazes). They hang up about a million lights, but not all concentrated in one spot. It's fairly spread out.
The price does include a few regular zoo attractions (kids coaster, spinner rides, carousel) and about ten or so animal exhibits. It's a treat to see the elephants, giraffe, and rhinos after dark.
Kevin Yee is the author of numerous independent Disney books, including the popular Walt Disney World Earbook series and Walt Disney World Hidden History.