The Pyrenees Mountains divide the two countries, with the long-used Roncesvalles Pass acting as gateway between them.
Aragon´s provinces of Huesca and Zaragoza lie to its east, La Rioja to the south and the Basque country to the north and west - you´ll find a wealth of Basque heritage in Navarre.
Teeming with castles and fortified buildings, it oozes Roman, Christian, Muslim and Jewish influences.
A land of quaint, medieval towns and hidden mountain villages, it possesses one of Europe´s highest densities of gorgeous green space.
Nature-lovers will relish its 50 natural reserves, plus the abundance of hiking, climbing and fishing opportunities.
But Navarre´s major claim to fame is probably the colourful bull-running festival which takes place in Pamplona - the region´s capital city.
Pamplona was immortalised by the renowned author Ernest Hemmingway and, each year - starting 7 July - the medieval city hosts a week-long festival honouring the city´s patron saint - San Fermin.
Bulls chase the young men - dressed in red-and-white - through the narrow streets, towards the bull-ring. Much excitement is had by all - except perhaps the bulls?
Pleasant Pamplona also beckons culture buffs, offering magnificent monumental buildings such as its Gothic Cathedral, 16th century citadel, and town walls.
Another of Navarre´s claims to fame is it being the main starting point in Spain for the famous Camino de Santiago pilgrimage trail - which ends at Santiago de Compostela.
spains navarra region - popular places
spains navarra region - popular sights
Check out the other, wonderfully varied, regions of Spain at the links below.