COLUMBUS ZOO & AQUARIUM 4850 W. Powell Rd., Powell 1-800-MONKEYS With more than 2 million annual visitors, it's no shock that the Columbus Zoo & Aquarium secured the win in this category. The nearly 600-acre zoo houses more than 9,000 animals and is one of the most well-known zoos in the country. It's open 363 days a year (except Thanksgiving and Christmas Day), so there's plenty of opportunity to share this Columbus gem with friends and family. Get up close and personal with the manatees, walk through the reptile house or make friends with the gorillas. There are plenty of other activities including train rides and hands-on animal encounters. Seasonal activities also abound: Don't miss the twinkling Wildlights each winter or the twists and turns of the water slides during the warmer months at the adjoining Zoombezi Bay water park. RUNNERS-UP: Franklin Park Conservatory and Botanical Gardens, German Village