With three memory palaces of ten stations I can say without a doubt that you do not have exhausted all places you know and/or have access to.
What’s more, especially if you’re starting go on site! The memory palace technique is not one where you just sit in your chair. Grab your shoes and go take a walk!
- Your street, other streets in your city
- A café / restaurant
- A museum / art gallery
- The local library
- Your place of work
- University campus and schools (usually have large parts open to the public)
- The nearest park / skate park / amusement park…
- The public part of hotels / conference centers…
- Friend’s / parents’ / grandparents’/ childhood home or any Airbnb/holiday place
- Train station / airport
- Churches (I don’t know for other religions but around here churches are mostly open to the public)
- …
Memory palaces are 100 times easier to use when you are (or have been) physically at the places you want to use. With experience you’ll learn to see places differently: since I began using memory palaces I notice A LOT more details than before when I go to places. Everytime you go somewhere there are potential memory palaces.
Also tons of ideas in this thread: The Big List: Location Ideas & Inspiration for Memory Palace Places