Cannot list all existing cities to check if certain city exists or not right away

[itspauloroberto]

I just found out that there's no "all cities list" or anything related, and I needed that to check if an city exists.

I would like to list all cities of all countries and all states to check if a certain city exists or not, and for that i would need to iterate all it over. Would be better to have an method available to get all cities or check if a certain city exists or maybe both.