Forgotten Hollow is a world introduced in The Sims 4: Vampires. It is comprised of 5 lots; 4 residential and 1 empty lot.
Forgotten Hollow is a centuries-old neighbourhood with a mix of Victorian and old Transylvanian architectural style. The world is scattered with tombstones, withered foliage and creeping fog, as well as gargoyles and other stone statues. The world contains only a single neighbourhood with 5 lots surrounding a central plaza, and at the center there is a memorial statue of Vlad, the founder of Forgotten Hollow.
This world is unique compared to other worlds in The Sims 4, because night time lasts a lot longer here than in other worlds, meaning vampires can stay out for longer without the risk of being burnt in the sun.