Sight Seeing locations are spread all over the city, and they are pretty hard to find. They are indicated on the map with a binoculars sign if you have bought the collectibles map, and if you have not, they will only be seen in the playable screen as a mounted telescope. You just need to approach one and press
to "Use Binoculars" to get it to count as found.
Now, the game does a pretty good job of providing you with collectibles maps. They are easily purchasable with Overcharge, but I like saving my charge for better weapons. So I went and searched online for an awesome map of all the Sight Seeing Locations.
Here is a link to the map:
which is from the website:
http://segmentnext.com/2014/10/29/sunset-overdrive-collectib...But if you still want an in game map for convenience, and don't mind wasting overcharge / have too much of it, you can go to Two Hat Jack, found in any hide out and other locations in the city.
To purchase your own maps, all you have to do is hold
on Two Hat Jack, hit
or
twice, press
, and scroll through the list of maps for each and every collectible.
Below is a video showing you the pricing of all the collectible maps and every single one that is available for purchase.