Editor’s Note: Sign up for Unlocking the World, CNN Travel’s weekly newsletter. Get news about destinations opening, inspiration for future adventures, plus the latest in aviation, food and drink, where to stay and other travel developments. CNN  —  Comprising more than 40 countries, Asia can’t be summed up easily. The classics are classics for a reason – from the awe-inspiring architecture of Angkor Wat and the Taj Mahal to the buzzy metropolises of Tokyo and Hong Kong and the beaches of Bali and Phuket, it’s impossible for any traveler to find something not to their liking. But for the travelers who are fortunate enough to have time to dig a…