An old-fashioned marker embedded in the sidewalk in San Francisco, spotted on my visit there back in December.
On my very quick visit to Toronto a few weeks ago, found this wonderfully wrapped utility box at Yonge and King downtown. (You might want to move farther away from your screen to get the full visual effect of this one!)
From my trip to San Francisco in December: There’s something I find aesthetically pleasing about how the angles of the building materials interact in this airport terminal. The variable sizes of the holes in the metal grilles add a little something too.