So I've been looking at maps.google and mapquest. Maybe I'm doing something wrong but I was hoping to plot out ALL the rest stops between Philly PA and Bentonville AR. My parents are driving out next week and it's highly likely they're bringing my grandma who is almost 90. My parents asked if I could identify the rest stops for them, that'd be great. Thing is, I'm having no luck

Would anyone here mind helping?