The document is a collection of images from various sources including Pixabay, Wikimedia Commons, and Flickr. The images depict natural landscapes, plants, animals, cities, artwork, and more. They are from different regions and time periods and were contributed by many photographers and artists under various creative commons licenses.

1. PIXABAY CC0

2. PIXABAY CC0

3. WIKIMEDIA COMMONS (Steelman CC BY-SA 2.5) A-E Väkeväinen

4. PIXABAY CC0
WIKIMEDIA COMMONS (MTPICHON, PD)

5. PIXABAY CC0

6. PIXABAY CC0

7. WIKIMEDIA COMMONS(Pascal Mannaerts, CC-BY-SA 3.0)WIKIMEDIA COMMONS (Alan James Garner, CC BY-SA 3.0)

8. WIKIMEDIA COMMONS
(Steve Dufour, CC BY-SA 3.0)
WIKIMEDIA COMMONS ( Cristinadeargentina, CC BY-SA 4.0)

9. WIKIMEDIA COMMONS (Rod Waddington, CC BY-SA 2.0)

10. WIKIMEDIA COMMONS (Llir PD)

11. WIKIMEDIA COMMONS (Difilozof, CC BY-SA 3.0)

12. PIXABAY CC0

13. PIXABAY CC0
PIXABAY CC0

14. WIKIMEDIA COMMONS (Arielinson, CC BY-SA 4.0)
PIXABAY CC0 PIXABAY CC0

15. PIXABAY CC0

16. A-E VÄKEVÄINEN

17. A-E VÄKEVÄINEN

18. PIXABAY CC0

19. WIKIMEDIA COMMONS (Niklas Jansson, PD)
FLICKR (Dennis van Zuijlekom, CC BY-SA 2.0)
https://www.flickr.com/photos/dvanzuijlekom/23574448540
WIKIMEDIA COMMONS (Michelangelo Buonarroti, CC BY SA-3.0)