From the outside, Professor Wonder’s WonderWorks Pigeon Forge laboratory appears to have flipped completely on its head. When visitors enter the upside-down edifice, they must first pass through the psychedelic spinning lights of the Inversion Tunnel, which turns the building right-side-up so that families can embark on a day of entertaining educational activities.

More than 100 interactive exhibits spark excitement around natural phenomena. The facility houses a replica of an astronaut's space suit that visitors can climb inside, a gallery of mind-bending illusions, and a café where human beings transform food into energy through the process of digestion. There's even a display that allows guests to experience the aftershocks of the San Francisco earthquake of 1989, as well as one where they can lie down on a bed of 3,500 sharp nails without receiving so much as a scratch. Additional activities include the Indoor Ropes Challenge Course, which exercises bodies and minds as challengers navigate four stories of swinging beams and suspension bridges, and the The Wonders of Magic, a variety show starring illusionist and Merlin Award winner Terry Evanswood.