One of the good things about where I work in Philadelphia is that I can walk to get lunch at Whole Foods on occasion, and to get there I can take the tiny cobbled streets which are from Ben Franklin's time. They are really narrow -- I guess just the right width for a horse and buggy -- and the row houses on either side are mostly the original houses that were there too. At this time of year, a lot of the little streets have a canopy of pink flowers:
Actually, these two pictures are from a street that has paved over the cobbles. The street that the house with the red door at the end is on, however, is a cobbled one.