Duluth photographer Dennis O’Hara presents this look at Duluth’s 12-foot-high by 580-foot-long “Image Wall” along the Duluth Lakewalk.

Muralists Mark Marino and Sandra Ettestad placed 6,960 12-by-12-inch tile assemblies and more than 1.7 million 3/4-inch ceramic tiles to create a timeline of Duluth’s shipping history.