This great but often overlooked park was founded by royal decree in 1918 to protect the natural integrity of the central Pyrenees. It has expanded from 4,940 to 56,810 acres as provincial and national authorities have added the Monte Perdido massif, the head of the Pineta Valley, and the Escuain and Añisclo Canyons.

- Photo: Javier Rosano / Shutterstock
- Photo: Michal Szymanski / Shutterstock