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) "surface" (Earth) (Continent) Afro-Eurasia (Continent) Eurasia (Continent) Europe (Mainland) Europe (Mainland) Italy (Europe) (Peninsula) Italian Peninsula (Europe) (Volcano) Mount Vesuvius (Italy) Phenomenon eruptions (Mount Vesuvius) (Event) Avellino eruption (2000 BC - 1500 BC)