I’ve got to give it to Google. No matter how ridiculous their April Fool’s jokes are, they are well produced and usually have a functional component. One of this year’s jokes is regarding an NES port of Google Maps (with an amazing homage to Dragon Quest II).
Though an NES version doesn’t actually exist, you can go to Google Maps right now and start playing around with the 8-bit maps by clicking on the Quest button near the top right corner.