Aragon stretches almost half the length of Spain 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.  It is home to a diverse range of scenery from snow capped mountains to dry arid plains.  Between  the 12th and 15th centuries the area was a federation of states which included Catalunya and which at its peak, stretched as far as Sicilly. 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 tourism but has a lot to offer to anybody wanting to explore.  The capital of the region is the city of 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.