Edited by Paulo Alves, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Emilio, some rights reserved (CC BY-NC-ND)
- 2. (c) aroche, some rights reserved (CC BY), uploaded by aroche
- 3. (c) Valter Jacinto, some rights reserved (CC BY-NC-SA)
- 4. (c) Valter Jacinto | Portugal, some rights reserved (CC BY-NC-SA)