How to transfer google maps placemarks from my maps to iphone?

How to transfer google maps placemarks from my maps to iphone?

I'm looking for a way to transfer the placemarks from google maps to iPhone maps. I usually set placemarks to the points of interest (sightseeings, hotels, restaurants) in foreign cities and using them with the iphone GPS would be great, however, I can't seem to find this functionality in the iphone app.