I just found this page by accident and looks so awesome: Snazzymaps. It has several templates to style your Google Maps on your page so that it looks more elaborated. You can adapt the map to concrete articles like the Midnight Commander style or use a Greyscale to give the map some “vintage” style, or even make it have tones related to your brand colors!!
Just have a look.
Ah, and in case you want to make your own template you can use this tool 🙂
Some cool ones:
