Photographs by Margaret Olin. Used by permission.

Image 1. There is no need to hide the eruv in Israel. Distinctive poles are used, and the flags hang over the middle of the street. Jerusalem, 2010.

Image 2. Officially sanctioned Eruv lines surround most cities in Israel, marked by red ribbons. Jerusalem, 2012.

Images 3 and 4. Jerusalem, 2012.