1 / 3   The "Bunker Comestible" is an organic farm in the French city Strasbourg and now planting organic mushrooms and seedlings in an urban environment. /VCG Photo

2 / 3   The “Bunker Comestible” was established in a bunker and initially used as a gunpowder warehouse after Strasbourg fell to the German Empire in the 1870 war. /VCG Photo

3 / 3   The “Bunker Comestible” means edible bunker. Black bricks in the bunker contain a mixture of wood chips and other organic material to provide nutrients, which is conducive to the growth of mushrooms. /VCG Photo