The following companies or individuals released photos or icons under a Creative Commons license that are used on this website. Thanks!

• Icondrawer
• GlyphIcons
• Keta - Donostia Igeldotik.jpg
• Jürgen Matern - Reichstag building Berlin view from west before sunset.jpg
• Larry Johnson – Eiffel Tower
• Ikiwaner - Ngorongoro Spitzmaulnashorn.jpg