The answer is easy and consists of two words: diversity and density. Compared to other travel destinations, Sri Lanka has an extraordinarily wide range of cultural and natural attraction in a relatively small area. Distances between different climate and vegetation zones are unbelievably short, and the number of pretty charming historical sites is much lareger then you might expect when reading pocket guides only about the famous ones. Just scroll down to find a list of more of a hundred places of interest...
Nuwan Chinthaka Gajanayaka