These signs line a hallway at the Ontario Museum of History and Art leading to the permanent exhibit “Road Signs.” They weren’t positioned quite right for a photo where you could see them all, but they read in full: “The highway makes/a grand exhibit/You won’t just look/You’re really in it!” I think the last one is “Road Signs Exhibit Here.”
The exhibit is really cool, by the way, if you like 20th century Americana: early campsites, roadside art, neon signs, Route 66 and even a display about the legendary Ontario restaurant Ford Lunch.