This is probably an archaeological ruin or a geologic formation. Hopefully, somebody will take a closer look at some point. If it’s a craft of some kind, it could well be the most extraordinary object ever discovered.
Story Source:
http://www.news.com.au/technology/sci-tech/cylon-raider-or-algae-swedish-booze-hunters-may-have-made-the-ufo-find-of-the-century/story-fn5fsgyc-1226098833887