Thank you for sharing
@Fignewton !
These are some great enclosures here for the Panamanian golden frog

and it is great to see it is kept in so many zoos ex-situ.
Of the three of these that you have highlighted I think I prefer aesthetically (from the visitors perspective) the last one at the National Aquarium best. I guess that the dimmed lighting outside really focuses and centres the attention on the animals within the terrarium.
That said, the information signage on display looks a little underwhelming and I think a lot more could have been stated about the species being extinct in the wild.
The Maryland enclosure perhaps looks the best in terms of husbandry and it is a brilliant looking enclosure which is a lot better lighted. They must have several more terrariums for the species held behind the scenes I imagine if they hold such a large group of them.
The Elmwood Park Zoo enclosure looks great too but I must admit I'm not a fan of the frogs being mixed with others. I suppose that I just feel that the mixed species exhibitry thing detracts attention educationally away from the golden frog (the red-eyed tree frog is a stunning looking animal too afterall).