If you want to get a feel for where you are, venture up to Mirador Portales. It offers unparalleled views that go on for miles.
This scenic viewpoint is located in Valparaiso. Once you've explored all you can at Mirador Portales, have a look at nearby Casa Mirador de Lukas, Quinta Vergara Amphitheatre, and Estadio Playa Ancha.