Not always a fan of indirect walking paths, but the use of negative/nature space with this sidewalk treatment is pretty neat and lends itself to a lot of different interpretations along a streetscape, to help create a moving but cohesive sense of space. I'd love to see something like this on Nicollet.
Strategy and Tactics in Public Space by a + t is a new interesting catalogue, that collects projects conceived for vacant lots, urban voids and forgotten piazza. Description from pinterest.com. I searched for this on bing.com/images