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) Venus veter.
                             01 Astra
                             02 Chasmata
                             03 Colles
                             04 Coronae
                             05 Craters
                             06 Dorsa
                             07 Farra
                             08 Fluctus
                             09 Fossae
                             10 Labyrinthi
                             11 Lineae
                             12 Montes - mountains
                             13 Paterae
                             14 Planitiae - basins
                             15 Plana
                             16 Regiones
                             17 Rupes
                             18 Tesserae
                             19 Terrae
                             20 Tholi
                             21 Undae
                             22 Valles