Natura - nature actualia - actual entities Mundus Plinius - physical world Astra Plinius - celestial bodies Universe (Supercluster) Virgo-Hydra-Centaurus Supercluster (Supercluster) Virgo Supercluster (Cluster) Local Group (Galaxy) Milky Way Galaxy veter. (Spiral arm) Orion Arm (Region) Local Bubble Local Interstellar Cloud (Planetary system) Solar System (Planet-satellite system) Earth System (Planet) Earth veter. "spheres" (Earth) (Sphere) Biosphere (Earth) - zone of life "terrestrial and freshwater ecoregions" (Bioregion) Old World (Biogeographic realm) Palearctic (Ecoregion complex) Mediterranean Forests, Woodlands, and Scrub (Palearctic) (Terrestrial ecoregion) Aegean and Western Turkey sclerophyllous and mixed forests (Palearctic) "Macedonia" (Aegean and Western Turkey sclerophyllous and mixed forests)