There has been at least one abandoned Portuguese village turned into an apparently successful eco-tourism destination: https://www.theguardian.com/travel/2010/j

There has been at least one abandoned Portuguese village turned into an apparently successful eco-tourism destination: https://www.theguardian.com/travel/2010/jan/31/algarve-village-reborn https://www.theguardian.com/travel/2010/jan/31/algarve-villa... .