John Ochsendorf, the MacArthur Fellow who masterminded our current exhibition on Rafael Guastavino, is looking to inspire more “Guastafarians.” That is, those who come to appreciate the importance of the Guastavino family’s influence on building technology and their work on some of the most iconic buildings in the U.S., such as the Supreme Court, the National Museum of Natural History, Grand Central Station’s Oyster Bar, and many more. So many more, in fact, that Ochsendorf and his colleagues are constantly finding hitherto undocumented Guastavino projects around the nation. They keep track of them at the Guastavino Project web site. And at a recent talk on the subject by Ochsendorf, he promised to buy lunch for anyone that identifies a bona fide Guastavino building that he didn’t already know about. Tips for finding a Guastavino tile vault? Look up! The herringbone tile patterns are often a giveaway.