A Missouri family sued the previous owners of a house that they had just bought after Brown Recluse Spiders "started bleeding out of the walls." An expert came in and estimated that the house was infested with 4,000 – 5,000 of the spiders.
2
There is an island near Italy that was the site of wars, a dumping ground for plague victims, and an insane asylum. It's considered so dangerously haunted that the Italian government does not allow public access.
78
In Australia, there are spiders big enough to eat snakes.
20