Facebook HQ

Facebook HQ was the headquarters of Facebook in at least one universe, where it suffered a series of mysterious eldritch occurrences starting in June 18th, 2019, involving the Man in Grey, time-slippage, a deal between Mark Zuckerberg and Chuckzikkiushki, and a mammalian rodent vaguely resembling a raccoon. Most of these events centred on the server room, where mysterious chanting could be heard and an alarming black mould began to grow. Other affected rooms included the break room, where the water cooler's contents were eventually replaced with liquid mercury, and Room 5B, which disappeared over a whole year (unlike Room 5A and Room 5C) only to reappear with the (mostly-)dead bodies of five employees who had gone missing around the same time. (PROSE: What Went Down at Facebook)