It's a rare quality for one single place to have such a standing in a nations collective memory that it comes to symbolise the character and spirit of a country. The White Cliffs of Dover have served that function for countless generations and really do encapsulate that often over used word 'iconic'.
I had somebody ask me recently in a most astonished voice why I had moved back to Finland after almost 20 years abroad. It made me laugh. That a Finn should ask such a question, how typical! A Spaniard would've asked me how come I managed to survive so long away from Spain, the best country in the world!