I just have a short trip to Canberra. My favourite place is Cockington Green Gardens, which is is 15km north of the city on Gold Creek Road, at Gold Creek Village, 10 minutes from Canberra city.
It has beautifully landscaped gardens with fantastic miniature buildings and scenes, which are exact replicas of real places at sizes ranging from 1/12th right down to 1/100th of the original size.