Discover inspiring projects and choose your NBS with the Nature4Cities project observatory and pre-selection tool Are you a policy-maker, or work as an engineer, and would like to obtain an overview of the potential of NBS for a more sustainable and liveable city? With Nature4Cities Geocluster4NBS you can select the challenges you want to address and the scale at which you intend to implement NBS. You obtain the related NBS and pioneer projects. Using this project database, you can find inspiration from existing projects. You can even check the replicability of the pioneer project or NBS on your own site.