Google Map Maker allows you to add and update geographic information for millions of users to see in Google Maps and Google Earth.
By sharing information about the places you know, like businesses in your town or places in your school campus, you can ensure that the map accurately reflects the world around you.
Your updates will be reviewed and once approved, will appear online for people from all over the world to see.
You can add to or edit the maps in hundreds of countries and regions. When you make changes to the following countries, approved changes will be actively be updated on Google Maps, Google Earth, and Google Maps for Mobile.
If your machine and internet connection provide a good experience on Google Maps, then Google Map Maker will work similarly well on your system.
This map imagery shows Vietnam before and after Map Maker launched.
You can refer to the below site for more help on creating a location, edit a location, and many more:
You can also refer to the below URL for video tutorials: