Royalty-Free Researcher Photos, orientation: horizontal
- 2288x2288 Public Domain
- 2048x2048 Public Domain
- 2000x1331 Public Domain
- 3177x1813 Public Domain
- 2200x1521 Public Domain
- 3000x2000 Public Domain
- 3200x1992 Public Domain
- 3200x1826 Public Domain
- 3200x1768 Public Domain
- 4460x2974 Public Domain
- 4200x2800 Public Domain
- 4460x2973 Public Domain
- 5128x3419 Public Domain
- 5472x3648 Public Domain
- 5000x3333 Public Domain
- 5184x3456 Public Domain
- 5472x3648 Public Domain
- 5472x3648 Public Domain
- 5184x3456 Public Domain
- 2048x1363 Public Domain
- 2000x1331 Public Domain
- 3000x2000 Public Domain
- 4592x3448 Public Domain
- 3008x2000 Public Domain
- 4608x2592 Public Domain
- 6689x4368 Public Domain
- 4558x2519 Public Domain
- 2800x800 Public Domain
- 4038x2939 Public Domain
- 5718x3812 Public Domain