The Center of the Earth Visitor Center is a storefront concept for Austin Bat Cave, a nonprofit youth writing center in Austin Texas. The Center of the Earth Visitor Center was inspired and sanctioned by 826 National, a nonprofit organization dedicated to helping students, ages 6–18, improve their expository and creative writing skills at seven locations across the United States.
The Center of the Earth Visitor Center was developed by Legge Lewis Legge using a story conceived in Austin Bat Cave writing workshops: 'A labyrinthine system of caves and tunnels, only partially explored had been recently rediscovered underneath the City of Austin Texas. The caves' first explorers noted many years ago that "some cave passageways have been observed to lead toward the very center of the earth".'
LLL developed models and images of the unique cave system, as well as eccentric maps (supposedly left behind by explorers and their ancestors). From these materials, stereoscopic 3D images for use in Viewmasters were produced as part of a promotional and fund-raising package designed the graphic design firm Lewis Carnegie.