There are two Melbourne observation decks, both giving you amazing views over the city and the bay.
However, I prefer the Rialto. There is a coffee shop and place to sit and hang out for a while - it is quiet.
The Eureka overwhelms you with an artificially created noisy Melbourne soundscape. This takes away from the viewing experience.
www.we-love-melbourne.net/Melbourne-observation-deck.html
Google map: tinyurl.com/o9rlm8
In line with the city's affection for the old west, Heritage Park is a historical village that gives you a taste of life a century ago on the great plains. Quaint rides, fun events, great for the family.
Nothing like a tower with a view. The Calgary Tower opened in 1968 and despite being since relegated to the "third tallest structure in Calgary" the view is terrific. The city stretching away beneath you. The Rockies in the distance. In town? Do the tower. During the 1988 Winter Olympics the flame was atop the tower and is still lit for special occasions.
All you need to know: www.calgarytower.com.