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) Old World
                                         (Region) Eurasia
                                           (Region) Europe
                                             (Region) Western Europe
                                               (Country) Netherlands (1813-present)
                                                 (Province) Noord-Holland (Netherlands)
                                                   Gemeente Amsterdam (Netherlands: Noord-Holland)
                                                     (City [pop. 500k - 1M]) Amsterdamᵀ (Netherlands: Noord-Holland)
                                                       1 (Zoo) Natura Artis Magistra (Netherlands: Amsterdam) - Artis Royal Zoo