We just got back from a vacation to Texas. One of the fun things we did there was visiting Inner Space Cavern in Georgetown, where I took these pictures.
Cave Pictures From Our Vacation
RobertLovesPi.net
Polyhedra, tessellations, and more.
We just got back from a vacation to Texas. One of the fun things we did there was visiting Inner Space Cavern in Georgetown, where I took these pictures.
RobertLovesPi.net 
Wondrous!
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