https://www.atlasobscura.com/places/tenderloin-national-fore...
Is there some abandoned parking lot in your town? Get some friends together with pick axes for a depaving party. Or, for something a bit less dedicated, craft some seed bombs (mix dirt and clay together into small cookie balls with native seeds in them) and throw them into the abandoned area. Boom, wildflowers, then pollinators, insects, birds, voila.