If I search for a place location on Google Maps, that location shows up with a red marker (for example a University). If I click on any other location on the map (for example a museum) the first red mark goes away and a new red mark appears at the new location.
How do I add markers on any custom locations on the map?
I don't need to be able to find directions or get distances, I just want to put up markers so that I can get an estimate of how close or far the various places are.
Is there any way to do this while viewing Google Maps in Google Chrome?