To keep this short, I want too kill off their Embassy to one-up them, but the main building is locked and requires a key. I can't get into the back because of invisible walls (stupid place for them...)

Is there a key I can find, or is there a more esoteric way of getting in, like Whirlwind Sprinting onto the ledge in the cave underneath?

Any help will be appreciated.

There is a glitch in the cave where you came out of. It took me about 15 minutes to achieve it. Look for a video on youtube.

you can unlock via console if youre on PC.

That's odd. For me the gate was lockpickable, just kicks you out every failed attempt so the lock range reset, although it was only 'adept' so didn't take that long.

Not the gate, the main building.

Also, I'm on ps3, so no console option.

I just walked back in when I went back to grab the Stone of Barenziah from Elenwen's Solar... The gate was still open and the gate guard just said one of those nonsense guard sayings as I walked past him. To get in the back (where there were still hostile mages) I followed one of the paths along the wall and was able to jump over the fence. This was a week or so ago, though, so maybe they put up an invisible wall where I jumped over.

wall/fence on the left side can be jumped over with a horse for sure, that how I got back in when going to get the Stone of Barenziah. I did the after the 1.3 patch so the there should be no wall there yet. There is no other way in, that I have found and I have had my hands in the pockets of every named Thalmor I have come across not one of them has a key to the embassy.

I tried for half an hour to Whirlwind Sprint onto that shelf, and couldn't do it.

I got back in using the horse. Thanks for that.

Thanks. I tried right side and theres a glass wall.