Our last few days of biking through the Extremadura region of Spain included more chances to immerse ourselves in its medieval past and cultural heritage. But leaving the region to enter Castilla Y León is no small matter. The region of Castilla Y León is a high plateau surrounded by mountains. So to get there, we had to climb over the Cordillera Central mountains. That included both breathtaking views, and catching our breath while pedaling 60 km uphill.