In Old City, Philadelphia, a street closed to vehicle traffic allows pedestrians to use the full length of the sidewalk and restaurant patrons to dine outdoors.  Photo 6 of 9 in In Times of Crisis, Hostile Architecture Poses a Bigger Threat Than Ever

In Times of Crisis, Hostile Architecture Poses a Bigger Threat Than Ever

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In Old City, Philadelphia, a street closed to vehicle traffic allows pedestrians to use the full length of the sidewalk and restaurant patrons to dine outdoors.