Bolder-Atlas by Brockhaus, printed in 1849, an antique drawing of vintage astrological spheres and charts and diagrams.… Free Image from public domain license 
An antique lithograph of the human musculature system from the encyclopedia, Meyers Konversations Lexikon (1894). Digitally… Free Image from public domain license 
Aeronautics - Aerial Machines from the book New Popular Educator (1904), a vintage collection of early aerial machines.… Free Image from public domain license 
Electric Discharges (1909), a collection of colorful and different drawings of electrical currents models. Digitally enhanced… Free Image from public domain license 
Clam shell varieties set illustration from Mollusca & Shells by Augustus Addison Gould. Original from Biodiversity Heritage… Free Image from public domain license 
An astronomy lithograph the Eclipse of the Moon printed in 1908, an antique celestial chart of phases of the moon in the… Free Image from public domain license 
An antique illustration of the human body (1900) by Larousse, Pierre; Augé and Claude. Digitally enhanced from our own… Free Image from public domain license 
A colorful solar system chart from The Twentieth Century Atlas of Popular Astronomy (1908), by Thomas Heath BA (1861-1940).… Free Image from public domain license 
Sea urchin illustration from Résultats des Campagnes Scientifiques by Albert I, Prince of Monaco (1848–1922).… Free Image from public domain license 
Positions of the Hands (1910) from the work of Joseph Gibbons Richardson (1836-1886). Drawings of hand gestures for sign… Free Image from public domain license 
A lithograph, Planetensystem, printed in 1898, an antique representation of a planetary system. Digitally enhanced from our… Free Image from public domain license 
Trochilidae–Kolibris from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of Congress. Digitally… Free Image from public domain license 
Ascidiae–Seescheiden from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of Congress. Digitally… Free Image from public domain license 
Orchideae–Denusblumen / A. Giltsch, gem from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of… Free Image from public domain license 
Leptomedusae–Faltenquallen from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of Congress.… Free Image from public domain license 
Scarlet Ibis with an Egg (1699–1700) by Maria Sibylla Merian. Original from The Rijksmuseum. Digitally enhanced by… Free Image from public domain license 
Siphonophorae–Staatsquallen from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of Congress.… Free Image from public domain license 
Thalamophora–Kammerlinge from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of Congress.… Free Image from public domain license 
Discomedusae–Schweibenquallen from Kunstformen der Natur (1904) Ernst Haeckel. Original from Library of Congress.… Free Image from public domain license 
Stephoidea–Ringelstrahlinge from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of Congress.… Free Image from public domain license 
Antilopina–Antilopen from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of Congress. Digitally… Free Image from public domain license 
Asteridea–Seesterne from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of Congress. Digitally… Free Image from public domain license 
Melethallia–Gesellige Algetten from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of Congress.… Free Image from public domain license 
Thuroidea–Gurkensterne from Kunstformen der Natur (1904) by EErnst Haeckel. Original from Library of Congress.… Free Image from public domain license 
Le Ballon by Imprimeur E. Pichot. Original from Library of Congress. Digitally enhanced by rawpixel. Free Image from public domain license 
Discomedusae–Scheibenquallen from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of Congress.… Free Image from public domain license 
Discomedusae–Schweibenquallen from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of Congress.… Free Image from public domain license 
Gedaanteverwisseling van de nachtpauwoog (1679) by Maria Sibylla Merian. Original from The Rijksmuseum. Digitally enhanced by… Free Image from public domain license 
Talamophora–Kammerlinge from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of Congress.… Free Image from public domain license 
Copepoda–Ruderkrebse from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of Congress. Digitally… Free Image from public domain license 
An antique illustration of the muscles of the legs and feet from the anatomical textbook, Hand Atlas Der Anatomie Des… Free Image from public domain license 
Construction of Dials (1809) from the book by John Wilkes (1725-1797), time measurement chart shown in geometric charts and… Free Image from public domain license 
Egyptian women comparing their scientific findings during a meeting of the newly formed Eastern Mediterranean Acute… Free Image from public domain license 
Muscinae–Laubmoose / A. Giltsch, gem from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of… Free Image from public domain license 
Filicinae–Laubfarne from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of Congress. Digitally… Free Image from public domain license 
Actiniae–Seeanemonen from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of Congress. Digitally… Free Image from public domain license 
Aurora Borealis in High Latitudes from the book William MacKenzie’s National Encyclopedia (1891), a colored… Free Image from public domain license 
Batrachia–Frösche from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of Congress. Digitally… Free Image from public domain license 
Lithograph Saturne printed in 1877, by F. Meheux, an antique representation of the planet saturn. Digitally enhanced from our… Free Image from public domain license 
Definitions (1851), an antique celestial astronomical chart of planet earth with a concept of definition of a planet.… Free Image from public domain license 
The Monster Balloon (Le Géant) from Nadar. Ascension 11 September 1865 by Morriën & Amand (1865). Original from… Free Image from public domain license 
Popular Lectures on Human Nature, a book cover illustration by an unknown artist referencing Prof. W.G Alexander. Original… Free Image from public domain license 
Peromedusae–Talchenquallen from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of Congress.… Free Image from public domain license 
Lichenes–Flechten from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of Congress. Digitally… Free Image from public domain license 
Prosobranchia–Dorderkiemen Schnecken from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of… Free Image from public domain license 
Acanthophracta–Wunderstrahlinge from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of Congress.… Free Image from public domain license 
Die Blutgefasse Des Menschen (1898), an antique lithograph of the human blood vessels and cardiovascular system. Digitally… Free Image from public domain license 
Acephala–Muscheln from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of Congress. Digitally… Free Image from public domain license 
An arrangement of nature painting of various leaves with unique designs from the book, Konversationslexikon (1894). Digitally… Free Image from public domain license 
French flag decorated group of air balloons harnessed together, by Leon Benett (1917) or Alphonse-Marie-Adolphe de Neuville… Free Image from public domain license 
Thalamophora–Kammerlinge from Kunstformen der Natur (1904) by Ernst Haeckel. Original from Library of Congress.… Free Image from public domain license 
An antique illustration of the human nervous system by Galtier-Boissière and Émile (1912). Digitally enhanced from our own… Free Image from public domain license 
Tulip, two Branches of Myrtle and two Shells (1700) attributed to Maria Sibylla Merian. Original from The Rijksmuseum.… Free Image from public domain license 
Korpers Des Menschen (1898), an antique lithograph of an anatomy chart of a human body showcasing its internal system.… Free Image from public domain license 
