The exhibit for Hamlyn's or owl-faced monkeys (Cercopithecus hamlyni) inside the Monkey House in ZOO Antwerpen. A very nice indoor rainforest exhibit but unfortunately there is no outdoor exhibit.
The Monkey House was opened in 1978 replacing an even older building on the same site. The 13 species of primates and 2 species of xenarthra inhabiting the house all have all-indoor exhibits.
ZOO Antwerpen, July 2011.