This is a nice photo and nice collection of turtles and frogs of Nebraska. In Ohio, there is LENSC in Bay Village (near Lorain), the Lake Erie Nature and Science Center, that has a turtle/frog/snake mixed-species exhibit.
@fkalltheway Sorry, but all of my photos from the 2014 zoo trip are buried somewhere on a laptop at home and so I do not have a species list. However, here is my mini-review of the facility:
Ak-Sar-Ben Aquarium - This place is a free, non-AZA-accredited facility located in Gretna, Nebraska, and it opened in 1990. The establishment is 12,000 sq. ft. but that includes a classroom, auditorium, display area and office space. There are 12 tanks on display, with the largest being 1,450 gallons in size. The other 11 tanks hold either 480 or 580 gallons and all of the species within the exhibits are native to Nebraska or have at one time been introduced to the state. There is a nice turtle display near the front counter and several smaller terrariums in a side room and overall around 55 different species are on display. It takes perhaps 20 minutes to tour this facility.