🎡 Confusion Hill

Confusion Hill is a roadside attraction in Piercy, California. The attraction, which opened in 1949, includes what is dubbed as a "gravity house", a structure built to give the interior visitors tilt-induced optical illusions, similar to the perspective on a gravity hill. Occupants experience the need to stand upright when they actually already are. Also included in the attraction is the Mountain Train Ride a 1+1⁄2-mile (2.4 km) 20 in narrow gauge built in a switchback layout along the side of a steep hill.