Stage 11 takes place in a town. It is the last town that you will visit before you scale the outer wall of the district lord's defenses. Unsurprisingly, you can find just about every item available for sale. This stage is far less complex than the previous stage, but with very long sections, searching for staircases will be challenging. Buying a candle may not be a bad idea if you have plenty of money. The starting section at the bottom of the stage is surprisingly bare any any interesting features, so don't waste a lot of time down there. Only two of the underground passages connect two stairways together, and both of them help Goemon traverse from the bottom of town to the very top where the exit gates await.
Don't miss the scroll in underground section 2, which also contains a pass that you'll need anyway.
Dungeon entrance: 800. This dungeon is not any different than the dungeons before except that, of course, it is larger in size. The map will especially help you, but don't forget that you can always create your own maps until you find the one provided by the game.