Going up the stairs, you see a very wide corridor that goes all around the outside of the building. There are open archways along the outer wall that correspond to those on the lower floor. This will offer you a good view all around. In the two corners you can see, there are stairs going up. You corner only goes back down. Along the inner two walls you can see are two open archways into another area you can't see from your vantage point.
So, you move around to see in one of the inner archways, while keeping away from the outer archways, and see a very large room. The room is 180 feet each way, but in the center is a 60x60 inner room with a door in the center of the north wall and, once you check, another door in the center of the south wall. Along the outer walls of this 180x180 room are more niche/alcoves you had seen in the foyer area. There are five along each wall. Each has one figure (a couple have two; one has three) in it, and it is surrounded with carvings depicting major events about the figure in the alcove. You get the feeling that these are many of the minor gods in the pantheon that either had minor portfolios or simply server more major gods.
As before, despite being opulent and still in surprisingly good condition, there don't seem to be any real treasures here. Also, unlike the altars below, there does not appear to be any damage to the alcoves here. You also do not see any real evidence of activity through here, either. You do go check the outside ring, and that does show evidence of activity from multiple people or creatures that have gone through the halls in the very recent past.
As before, when you go around towards the south side, you can hear activity more clearly, but it is still hard to make out anything anyone might be saying.
It is also obvious that it was intended for there to be various activities in this big room, too. This must have been a bustling beehive of activity, back when it was an active temple!
OOC:
So, you can take a look at the alcoves and carvings, check out the inner-most room, or head to the next floor.