I got an idea! Let's make a Colosseum and have gladiator fights there.
Vivec, Arena district?
I've copied the foreign quarter interiors into the exterior, and while 90% appears to match, http://i.imgur.com/mBrax.jpg. Perhaps a better idea would be to do something easier:
http://i.imgur.com/sQ4rp.jpg
The left lower door leads to the http://i.imgur.com/AJiZC.jpg, with access to the Library, and the Canton offices. And an entrance to the High Fane.
The right lower door leads to the http://i.imgur.com/p2uqS.jpg, with access to Justice Offices, Ordinator barracks, the hall of wisdom, and the High Fane.
http://i.imgur.com/xQtf8.jpg
That's a lot less work than the foreign quarter, with all its layers. Afterwards it would be possible to do the floating http://i.imgur.com/f6MoQ.jpg (A prison heavily guarded by ordinators) as well, or the http://i.imgur.com/c1NS3.jpg, with a room for the god Vivec at the top. The rest of the canton could be filled with mazes. If people aren't sick of the idea by then.