The city of Columbus, Indiana, isn’t just one of the most architecturally-rich places in the United States—it’s also among the most overlooked. Where else can one find works by Eliel and Eero Saarinen, Cesar Pelli, Richard Meier, Kevin Roche, and I.M. Pei, all in thirty square miles? Landmark Columbus, a new preservation group established last year, has been working to elevate the city’s cultural status through the first annual Exhibit Columbus—an “exploration of architecture, art, design, and community” that kicked off September 29.