A high-resolution and absolutely free photos stock site with only one type of licence: (CC0 Public Domain).
Photographers are welcome to upload your photos under CC0 Public Domain licence.

Sky Background Business Beach Food Business Football Player Wood Family Fitness Travel Wood Texture Fashion Valentines Day Coffee Abstract Water Paper Texture 2015 Spa public domain free for commercial landscape macro closeup city skyline flower rose tulip daisy fruit vegetables Texture mountain green blue orange red yellow garden winter summer spring autumn sunrise sunset snow