Answer:
The photos in the hallway create a personal and sentimental atmosphere in the restaurant, making it feel special and unique to both Arturo and the customers. The old photos of important events also add an element of history and legacy, making the restaurant more impressive and memorable to those who visit. The large number of photos to look at also serves as a source of entertainment and distraction, keeping Arturo and the customers from getting bored while waiting for their food or just passing by. The photos help create a warm and welcoming environment, adding to the overall experience of the restaurant.