Monster Hotel is a fictional establishment designed to cater to various monsters and supernatural beings. It offers unique accommodations and amenities tailored to the needs of its unusual guests, such as vampires, werewolves, and mummies. The hotel features spooky decor, themed rooms, and a variety of monster-friendly services. The concept of Monster Hotel is popularized by the animated film series, where characters like Dracula and Mavis run the hotel. The series showcases the adventures and challenges faced by the hotel staff while providing a humorous take on the lives of monsters living in a human world.