Cinemablend's list description: Almost as long as there has been cinema there have been horror movies. While the genre is often branded with the stigma of being low-brow, cheap, and only for hardcore fans of jump scares and gore, it is also responsible for some of the greatest films of all-time, and certainly many of our favorites fall somewhere along the horror spectrum.
Just as there are trashy, forgettable, throwaway horror films every year, there are also those that that play upon our greatest fears to create tension, an ominous atmosphere, and to terrify us to our very core. The history genre is full of monsters, both human and otherwise, horrific events, and chilling scenarios that thrill us, scare us, keep us on the proverbial edge of our seats, and stick around to haunt our nightmares long after we leave the theater.
Note: I didn't have enough room to include their third paragraph.
