The Turtle - Creative Commons, Modified with WPT, see:
https://commons.wikimedia.org/wiki/File:Testudo_horsfieldii;_Baikonur_001.jpg?uselang=de
Eiffeltower - Creative Commons, Modified with WPT, see:
https://commons.wikimedia.org/wiki/File:Tour_Eiffel_Wikimedia_Commons.jpg?uselang=de
Gaslantern - Creative Commons, Modified with WPT, see:
https://commons.wikimedia.org/wiki/File:Gaslaterne.jpg?uselang=de
Me - Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0), see:
https://creativecommons.org/licenses/by-nc/3.0/
Masrur Rock temple - Creative Commons,Modified with WPT, see:
https://commons.wikimedia.org/wiki/File:Masrur_rockcut_temple.jpg?uselang=de