A colonial gem with the country’s priciest real estate, this Caribbean city is Colombia’s pride _ increasingly popular as a port of call for cruise ships, and aspiring to be the new Cancun with a frenzy of luxury construction. Bill Gates, Bill Clinton, the king of Spain _ the list of celebrities visiting this month alone is rich, the catalog of Colombian notables acquiring Cartagena homes a veritable who’s who. An evening carriage ride in the majestically preserved walled city, which has U.N. World Heritage status, is a magical vault into the past. Full Story