The white church in the middle of Brest, not to far from the river.
Looks like a maze, however, there are trapdoors as well, that make traveling through the maze very difficult. Also, appears to be a no magic zone.
None (no offense to the creator)
Uncertain. I didn´t keep track since I spent a huge amount of time trying to find the exit. Eventually I had to starve to death to get out. I haven´t been back since.