Many years ago, wandering lost in one of the lower levels of the conglomerate of heterogeneous construction that is Medical Center North, I stumbled upon an information office. They took pity on my plight, and gave me one of their maps of the building.
This is by no means a good or pretty map, but it absolutely invaluable. I have treasured it for years, and I know that it has saved my life on several occasions.
Here, I offer it to you, with the hope that you can benefit from it as well. And if, someday, someone with a better map of the architectural monstrosity in question sees my page, then I hope they'll pass it on to me, and I'll make it available to all, impartially.
Note: This map doesn't show it, but our new building, MRB3, abuts MCN to the north, and in fact, envelops U corridor, or the Learned Labs building.