Fourth Avenue arches

This isn't about the McDonald's on South 6th Avenue (here and here). A bit north and east are other welcoming arches you'll see — ten blocks after you enter the city of South Tucson from the north side — on 4th Avenue just north of 38th Street:

(As always, you can click for a larger view of a photo — and use your browser's "Back" button to come back.) Here's a detail from one of the arches: