Southampton is divided into council wards, suburbs, constituencies, ecclesiastical parishes, and other less formal areas. It has a number of parks and green spaces, the largest being the 148 hectare Southampton Common, parts of which are used to host the annual summer festivals, circuses and fun fairs. The Common includes Hawthorns Urban Wildlife Centre on the former site of Southampton Zoo, a paddling pool and several lakes and ponds.

Answer this question, if possible (if impossible, reply "unanswerable"): What related attraction was at the same site before the Urban Wildlife Centre?
Southampton Zoo