Birnin Zana is located within Wakanda. It is considered by some to be a smart city. In Birnin Zana, pedestrians walk along commerce-filled streets that are car-free except for the occasional appearance of (buslike) shuttles. The whole is quite similar to the woonerf concept, an approach to public space design which started in the Netherlands in the 1970s. Maglev trains are seen zipping above and around the city. The Wakandan buildings incorporate some traditional African elements (i.e. thatched roofs and hanging gardens) on some of the tallest structures.