Ramada Plaza is the closest, Country Inn and Comfort Inn are also close. All are near Turner field. The Social Goat Bed and Breakfast is also extremely close and very nice if you'd like something different. I bet you could even hear the zoo animals from there! If none of those options work, downtown area hotels are all a short drive or Uber away.
Google Maps has a great feature for this. Simply pull up Zoo Atlanta on Google Maps, select search nearby, and type hotels.
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