The MoMA design area has these gorgeous ceramic tiles built by Antonio Gaudi from the Casa Mila in Barcelona about a hundred years ago.  We’ve been building a 21st century hex tile, but out of concrete instead of ceramic.  They may not necessarily be around in 100 years, but they have 50-75% recycled glass inside, so that’s something.  

 

At right you’ll see a sample of inlaid concrete.  We are still thinking up awesome applications for this.  Signage? art? ??