Medieval masterpiece: Dubrovnik is one of the most delightful cities in the AdriaticIt is said that we often overlook the wonders that are strewn at our feet. Certainly, in an age when Peru's Machu Picchu and China's Great Wall are within holiday reach, it is all too easy to forget that Europe has landmarks of incomparable worth and value. In fact, our home continent is a 3,000-year history