google-maps - How to not display the touristic locations with Google MAps API version 3

Question

Probably a crazy question when we are english...
How to not display by default on the Google maps the touristic locations (state parks, reservation) ?
I didn't find the right wording in the API.
This is my code, in Javascript:

map = new google.maps.Map(document.getElementById("map"),
            {draggableCursor:"crosshair",
             mapTypeId: google.maps.MapTypeId.ROADMAP,      
             zoom:15,
             panControl:false,
             zoomControl:true,
             scaleControl:false,
             streetViewControl:false,
             maxZoom:19,
             minZoom:10       
            });