Sell franklin mint coinsTomorrow, the Columbus Zoo and Aquarium will be observing "quiet hours" throughout the park from 10 a.m. to 5 p.m. to allow guests to enjoy the Zoo without added background sounds (such as music throughout the park or the carousel) that can be challenging for individuals with sensory needs.All active asset capital forumThe Columbus Zoo and Aquarium is open every day of the year with the exception of Thanksgiving and Christmas Day. (Starting Aug. 16, Zoo hours are 9 a.m. - 5 p.m. Mondays - Fridays and 9 a.m. - 7 p.m. on Saturdays and Sundays. Zoo closes at 3 p.m. on Aug. 28 for Zoofari.) * Please note that hours are subject to change.