A few maps pieced together from familiar games. They were made with different methods, but most were made with BgMapper. Some are mode 7 and directly exportable from BgMapper. Others had to be exported in parts pieced together with image editor. If I remember right, I found little Zelda 64 maps with SpriteView 4bit linear.
Disclaimer: The images below obviously come from copyrighted game (like you didn't know that), but I make no profit from them. They are simply games I own and enjoy (and by own, I do mean the original cartridges).
More maps others have made and contributed :) Thanks to Raven, Shogetsu, and Graham Lackey.