1 - La Scapigliata - Leonardo da Vinci - Public domain, via Wikimedia Commons
2 - Titian - Self-Portrait - Public domain, via Wikimedia Commons
3 - Hendricus Dievenbach - Public domain, via Wikimedia Commons
4 - sunset, Nevada - (c) TheMachine
5 - Holy Family - Jan Gossaert - Public domain, via Wikimedia Commons
8 - Valley of Fire, Nevada, USA - (c) TheMachine
9 - Park Bellevue, Potsdam, Germany - (c) MonaLisa
10 - Amazonas, Venezuela - (c) MonaLisa
11 - Castle - Tabor - CC0 Public Domain, https://pixabay.com/en/castle-mystical-mood-moonlight-1483681/
12 - Live Life - ShonEjai - CC0 Public Domain, https://pixabay.com/en/background-abstract-graffiti-1517622/
13 - MonaLisa
14 - MonaLisa
15 - Yosemite National Park, California, USA  - (c) TheMachine
16 - Landscapes Mountains - Tabor - CC0 Public Domain, https://pixabay.com/en/landscapes-mountains-mood-nature-1072108/
17 - Valley of Fire, Nevada, USA - (c) TheMachine
18 - Redskins Fedex Field, Washington, USA - (c) TheMachine
19 - Castle -  __Jasmin__ - CC0 Public Domain, https://pixabay.com/en/castle-fairy-tales-nature-water-2064013/
20 - Evening atmosphere - Der_Typ_von_Nebenan - CC0 Public Domain, https://pixabay.com/de/sonne-baum-himmel-sonnenuntergang-2119478/
21 - Sonntagsspaziergang, Carl Spitzweg - Public domain, via Wikimedia Commons
22 - Isle Of Skye, Scotland  - FrankWinkler - CC0 Public Domain, https://pixabay.com/en/landscape-scotland-isle-of-skye-540115/
23 - Mandala - https://publicdomainvectors.org/en/free-clipart/Arabic-mandala-with-tiger-patterned-star-vector-drawing/30440.html
24 - A Knight at the Crossroads, Victor Vasnetsov - Public domain, via Wikimedia Commons
25 - Saihouji - GNU, via Wikimedia Commons
26 - Vedute der Isola di San Pietro di Castello - Francesco Guardi - via Wikimedia Commons
