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 "geopolitical regions" (Region) World (Region) Americas (Region) South America (Region) The Guianas (South America) (Country) Guyana (1966-present) 064800N0581000W (City [pop. 100k - 500k]) Georgetownᵀ (Guyana: Demerara-Mahaica)