Bildnachweis

Aurora
By Arctic light – Frank Olsen (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

Sternenhimmel
By Mathias Krumbholz (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

Römische Bäder
By Momay (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

Laubengang im Sizilianischen Garten
By Bärwinkel,Klaus (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY 3.0 (http://creativecommons.org/licenses/by/3.0)], via Wikimedia Commons

Orangerie
By Momay (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

Park
rysnal [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

Friedenskirche
By Wolfgang Staudt [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons

David Roberts, R.A., (* 24. Oktober 1796 in Stockbridge bei Edinburgh, † 25. November 1864 in London) gilt als einer der bedeutendsten Vedutenmaler des 19. Jahrhunderts.

Steinkreis
Netvor at the English language Wikipedia [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], from Wikimedia Commons

Plan der Großen Labyrinth-Höhle auf Kreta nahe Mires (Messara-Ebene), nach Vermessung der Höhle 1817 angefertigt 1821 in Prag, veröffentlicht 1823, Franz Wilhelm Sieber

Brücke
By Herbythyme (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY-SA 4.0-3.0-2.5-2.0-1.0 (http://creativecommons.org/licenses/by-sa/4.0-3.0-2.5-2.0-1.0)], via Wikimedia Commons

Berge
By Zdeněk Thoma (Own work) [CC BY-SA 4.0 (http://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons

Insel
By Venkatesh K from Bangalore, India (Heavenly view) [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons

Aurora
By Arctic light – Frank Olsen (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

Erde
By NASA Earth Observatory [Public domain], via Wikimedia Commons

Sternenhimmel
By Mathias Krumbholz (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

Sternhimmel – Spin
By http://www.eso.org/public/images/potw1534a/ (ESO/A.Santerne) [CC BY 4.0 (http://creativecommons.org/licenses/by/4.0)], via Wikimedia Commons

Base Camp
By Pravin Mishra (Own work) [CC BY-SA 4.0 (http://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons

Osterinseln
By Anne Dirkse (www.annedirkse.com) (Own work) [CC BY-SA 4.0 (http://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons

Sprössling
By Alanzon (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

Moos
By Amada44 (Own work) [Public domain], via Wikimedia Commons

Wasserfall
Thomas Bresson [CC BY 3.0 (http://creativecommons.org/licenses/by/3.0)], via Wikimedia Commons

Moss 2
By Souryadeep Mukherjee (Own work) [CC BY-SA 4.0 (http://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons

Landschaft
By Märt Kose (Own work) [CC BY-SA 3.0 ee (https://creativecommons.org/licenses/by-sa/3.0/ee/deed.en)], via Wikimedia Commons

Landschaft
By Heris Luiz Cordeiro Rocha (Own work) [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

Berge
By Carlos Perez Couto (Own work) [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

Wald
By Brocken Inaglory (Own work) [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0) or GFDL (http://www.gnu.org/copyleft/fdl.html)], via Wikimedia Commons

Wald
By Frank Vincentz (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

Landschaft
By Carlos André Viana (Own work) [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

Himmel
By Brocken Inaglory (Own work) [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0) or GFDL (http://www.gnu.org/copyleft/fdl.html)], via Wikimedia Commons

Horizont Bild 1
Karin Beate Nøsterud/norden.org [CC BY 2.5 dk (http://creativecommons.org/licenses/by/2.5/dk/deed.en)], via Wikimedia Commons

Salar de Uyuni
Diego Delso [CC BY-SA 4.0 (http://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons

Sonnenaufgang
By Mundoo (Own work) [CC BY-SA 4.0 (http://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons

Salar de Uyuni
By YoshiVic (originally posted to Flickr as Salar de Uyuni lake) [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons

Insel
By Bartosz Dworski (Own work) [CC BY-SA 3.0 pl (http://creativecommons.org/licenses/by-sa/3.0/pl/deed.en)], via Wikimedia Commons

Sonnenaufgang
By Nigel Howe from Sydney, Australia (Sunrise at Narrabeen) [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons

Sonnenuntergang
By Jimmy McIntyre – Editor HDR One Magazine (Pink sunset) [CC BY-SA 2.0 (https://creativecommons.org/licenses/by-sa/2.0)], via Wikimedia Commons

Muschel
Steve Jurvetson [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons

Schwarze Perle
By Brocken Inaglory (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

Muschelschale
By James Petts from London, England (Coloured shell) [CC BY-SA 2.0 (https://creativecommons.org/licenses/by-sa/2.0)], via Wikimedia Commons

Nautilus
This Wikipedia and Wikimedia Commons image is from the user Chris 73 and is freely available at //commons.wikimedia.org/wiki/File:NautilusCutawayLogarithmicSpiral.jpg under the creative commons cc-by-sa 3.0 license.