This is a WordPress plugin that generates responsive and styled maps, using the simplest shortcode!
The plugin allows multiple markers per map and multiple maps per page. No API key required.

The plugin can create (if your page template supports full-width): FULL-WIDTH MAP

You can view here ALL THE MAP STYLES!

Create a simple back&white map using just an address:
[res_map address="New York" style="24" icon="green" zoom="14"]

Or create the classic map using just latitude, longitude like this:
[res_map address="40.6700, -73.9400" icon="black" description="<img src=''> {br} The address or phone number" directionstext="view directions to reach us" ]

And here is an example of a map with many markers: