Not too far from the city centre, the North Terrace is a pleasant walk that has a lot of attractions within a short distance. You start from the eastern side close to the botanical gardens and walk past the Migration Museum, South Australian Museum, South Australian University and the State Library. In fact, if you're interested in the history of Australia, the South Australian Museum has the largest aboriginal art gallery exhibition which showcases natural science, boasts a large historical collection and much more.
If you are interested in art, then a visit to the Art Gallery of South Australia is a must as it showcases nearly 40 thousand artworks and the entrance is free!