The best view of the city is from the top of this hill.
Quite a view!
You simply can't visit Lyon without checking out the view from this overlook on the esplanade right alongside the basilica. From here you get the absolute best panorama out over the entire city - giving you a sense of its geography, how it's divided by the Rhône and Saône rivers, maybe even see the Alps off in the distance if the day is clear enough. To help you identify landmarks, there's a map right on the spot. You can reach the overlook by taking the funicular at the Vieux-Lyon metro station (the quickest and most comfortable way), or if you're up for a bit of exertion, there are steps leading up here from the city below.