Royalty-Free Civilization Photos, dominant color: gray
- 1648x2000 Public Domain
- 2126x2736 Public Domain
- 2176x1404 Public Domain
- 3000x1879 Public Domain
- 2304x1728 Public Domain
- 2952x2474 Public Domain
- 1632x1224 Public Domain
- 4288x2848 Public Domain
- 5472x3648 Public Domain
- 4032x3024 Public Domain
- 5000x3574 Public Domain
- 3640x2131 Public Domain
- 5135x2988 Public Domain
- 5944x3908 Public Domain
- 4272x2848 Public Domain
- 4768x2805 Public Domain
- 4288x2848 Public Domain