website that lets me build a map?

I wanna create a map that shows select cities in europe and where they relate to one and other.

so i want a map that shows where Hamburg is, where Sarajevo is, and where Barcelona is (and a few other cities). But only those cities.

so far all i can find is maps that will highlight those cities but the whole thing is congested with locations of everything else.

Is there a website where i can build a map that only shows cities that i want highlighted, and not one that shows every city?