This large lump of limestone stuck to the end of the Iberian Peninsula is as famous for its bizarre geology as it is for its overly-friendly furry friends. Though many countries have claimed the beacon over the years, it's officially owned by the British government and thus it is advised that tourists exchange Euros for Pounds here for ease and economy. The Rock of Gibraltar is easily conquered by cable car, but it's worthwhile to hire a guide (around 25 USD per person) to explain the countless caves and mites, and to coax the wild monkeys to give a toothy grin while atop your head. On clear days visitors can even view North Africa.
St Michael's Cave, long believed to be bottomless, is a thrilling attraction with many myths and stories attached. Part of the massively deep cave is open to visitors and is even used as a concert venue. The labyrinthine Great Siege Tunnels, an incredible defense system constructed to repel the Spanish and French invaders between 1779 and 1783, is also fascinating. The Moorish Castle complex, dating back to the 11th century, is another impressive attraction in Gibraltar. The fit and brave should consider walking up the steep Mediterranean Steps, which wind up the eastern side of the Rock, providing stunning views, but this hike is not suitable for those afraid of heights!
Transport: About two hours from Seville by car