Since you are trying to take a look to everything cautiously, I am assuming you actually enter just into the ruined area to the left of the doorway (from the perspective of the outside) for cover. From your vantage point, you have a good look around you and can see a "side view" of the buildings on either side of the ruined buildings, and a very good view of the central structure.
The ruined area you are in is, just that, ruined. It has been that way for quite a while and seems to have been crushed by something coming from the direction of the main building towards the door. It would seem odd that such damage would have been created by someone inside the Remnant, but that is what the evidence shows. A quick look around doesn't show anything of value, and it appears to have also been cleaned out a long time ago, too. Double-checking the open area shows that no one is present and you are sure you don't hear anyone coming anywhere nearby, either. Looking at the nearest unruined structure, you can see that it is still run-down and it was obviously a storefront of some kind. It is full of unusual items. It has a section that included what once held some small, live animals. It has another section that once kept foodstuff, but not supplies, but unusual things like sweet wafer cakes, choice cuts of meats, ornate breads, and other things like that. There are even the remnants of what they once had, including a pretty nice nearly fossilized loaf of bread shaped like a bird. There is also another section that has things that look like they were pretty much spell components of some kind.
OOC:
Oliver, give me a roll with Advantage.
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While you look in it, Arc takes a better look at the central structure. It is surprisingly open. As mentioned before, it is very ornate and well decorated, and it seems to be in better condition than the non-ruined areas along the walls. It appears to have at least four floors to it, and it is quite impressively sized for its girth, in addition to its height. You can easily go into the main floor area as there are no obvious doors blocking the openings. It is quite evident that the whole point of this remnant is the main building, and everything else is simply in support of it.
OOC:
I assumed you check out the one ruin and the nearest attached building just to get a feel for what is around and the age of the area. Plus it lets look look out under protection with an easy way to get out of the Remnant if you had to. You went left because going right would get you closer to where you think the orcs are. Now, you can either continue with some more buildings, or go across the open area and just check out the main building. Oliver seems to want to check out the outer buildings; Arc wants to check out the main building. There is no challenge to getting into the main building, as it is all open.
And just to save me an extra short post, when you do go to the main building, as soon as you get close to it, Oliver immediately sense that there is a low-level, but very pervasive magic about it. There is no indication as to why or what the source is; just that its present and isn't along the outer buildings, ruins, or wall.