![](http://www.alamy.com/thumbs/6/2A7B6F23-85EE-4665-94DA-2A0626CEE1F6/B88XTG.jpg)
Traditional clay tiles on roof covered with lichen Netherlands
Size: 5137px × 3425px
Photo credit: © Chris Howes/Wild Places Photography / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: air, clean, green, growing, indicator, lichen, red, roof, rooftop, slate, species, tiled, tiles, traditional