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.
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Kevin Yee is the author of numerous independent Disney books, including the popular Walt Disney World Earbook series and Walt Disney World Hidden History.