This question already has an answer here:

Recently I drove on a road not yet mapped on osm. As soon as I get back, I will add it. It made me wonder if every piece of land is already mapped, or if you could still have a bit of adventure, doing some real exploring.

merged by Ankur Banerjee Aug 10 '13 at 6:52

This question was merged with What on earth has yet to be explored? because it is an exact duplicate of that question.