A funhouse or fun house is an amusement facility foun on amusement park and carnival midways in which patrons can have a number of unusual and hopefully amusing experiences, both physical or psychological. Unlike thrill rides, it is a participatory attraction, where patrons enter and move around under their own power. It can be thought of as a slightly insane or even sadistic obstacle course, or as a place where people can briefly experience a world very different from the normal, because, for example, the floor doesn’t stay put under their feet, they can’t always trust their senses and even gravity is not completely reliable.