The basement of Luskan's The Cutlass. Here you can hire a meeting room for those shady businesses, and if you pay a few gold more, a door-watch is included to keep curious people from accidently wandering in on you.

Other features include a escape route. If you have to take the "backdoor out", this is the way. You enter the basement on the left of the map, and on the right is the path to freedom. Except that it is guarded by an iron golem blocking the doorframe, and only letting people pass if they place 5 gold in its open palm.

Created using Dundjinni, then light-effected using photoshop.