Geometric Sandcastles by Calvin Seibert Neodim 11 years ago Calvin Seibert builds impossible géometric shapes with sand ! ++Calvin’s FlickR ++via Colossal PinShareTweet0 Shares Tags:sand, sculpture PinShareTweet0 Shares Facebook Prev Article Next Article Tags:sand, sculpture Related Posts More Revealing Portraits of Kids Around the World and Their Toys Neokentin March 27, 2014 22 Marvelous Grass Sculptures Neokentin July 3, 2013 Cattle Art Neokentin December 2, 2013 Add Comment Cancel reply Save my name, email, and website in this browser for the next time I comment.