Green roofs come up a lot when we talk about sustainability. Green roofs are not just a design choice. They can create gardens to grow food for people who do not have the option for a garden on the ground. They hold on water after rain to stop excess runoff and flooding. And they can be used to hold in heat and give thermal protection to the building.
Building with 476 apartments that looks like the figure 8 from above (built Award winner in the category best housing project in the World Architecture Festival in Barcelona Architect: BIG, Bjarke Ingels Group, Denmark.