Guess the Dungeon #10

Here's today's map.  Can you name the dungeon?

And here's my map (it's actually copied from a catacomb map I found whilst browsing Google images, and Marg drew it for me so it's not actually mine).  For my creative input though, I will give it purpose.  I see this place being used by Kobolds as a race circuit rigged with loads of traps, steps and dead ends.  If they capture adventurers, they strip them, and give them a 10 count to start running, before sending a dozen giant rats after them.