Aragon stretches from the Pyrenees and the border with France in the north down to the border of the Valencian community in the south.  Spain's largest river the Ebro flows through the region.  The region is home to a diverse range of scenery from snow capped mountains to dry arid plains.  Between  the 12th and 15th centuries Aragon was a federation of states which included Catalunya and which at its peak, stretched as far as Sicily. In 1469 Aragon saw the marriage of Isabel of Castile and Leon  to Fernando II of Aragon the king and queen who would see the demise of the Moors and the reunion of Spain.   This region of Spain is largely untouched by mass tourism but has a lot to offer to anybody wanting to explore.  The Pyrenees area is home to a wide variety of flora and fauna, birds and wild animals. It attracts walkers, bird watchers and horse riders from around the world. The capital of the region is  Zaragoza, Spain's fifth largest city.  Some of the regions most spectacular scenery can be found in the Ordesa national park in the Spanish Pyrenees.