Guess the Dungeon #26

This is the last dungeon in this series as the Kickstarter that it is promoting ends tomorrow.

For the last dungeon I have a portion of a building taken from an adventure.  It is quite likely that more copies of this adventure exist in print than any other adventure written.

And here's my last geomorph for a while.  I may pick up drawing these again on a weekly basis as eventually, when I've got 100 of them done, I'd like to release them as a low cost PDF.