And you thought your nightmares were bad. 😱

From real-life historical characters to mythical creatures, Cheapflights names its top 10 most terrifying ghosts from around the world. Even better, we tell you where you might meet some of them!

A recent sighting of a historic urban legend has some in New Jersey locking their deadbolts and closing their blinds.

"The scary part is that there's a possibility this could happen to you."