It's hard to think of Barcelona and not think of its famed street, La Rambla. But this same street design (and name) also appears in other cities throughout Spain. The above two streets are in Palma. The first is also called La Rambla (which is supposedly derived from an old Arabic word meaning sandy riverbed) and the second is called the Paseo del Borne. Both follow the exact same urban design principles. They're broad tree-lined streets with a large center median dedicated to only pedestrians. All car traffic is relegated to the sides. What's great about this design is the following. One, it reallocates public space according to who uses it the most (i.e. pedestrians). Two, it consolidates the main pedestrian realm (in lieu of just having larger sidewalks on either side of the street). And three, it establishes a clear hierarchy for the street. Pedestrians are most important here, and that's why they get the center position. It's surprising that more cities don't adopt this same design.