Telstra Tower, Canberra, Australian Capital Territory, Australia.
There are two well known locations in the vicinity of the city of Canberra where you can get a great view of the whole city and the surrounding countryside, the first is free and is Mount Ainslie Lookout, the other one charges $7.50 for the privilege, and stands on Black Mountain: Telstra Tower.
I know which I like the best.
Here is a part of the structure that stands on the more expensive option, opened in 1980.
Click the image for a larger view or visit my website for a High Resolution version.