ID 228872619 © Aaltay | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
architecture attention background black box building caution cement concrete construction danger dangerous design dirty electric electrical electricity energy fall gray hazard industrial industry material old plastic power risk road rough safety security sign signal space stone street surface symbol texture textured triangle urban voltage wall wallpaper warning white