Panama is one of the fastest-growing destinations in Central America, and the Panama Canal is the country's star attraction. Although it's on everyone's list of things to experience, the canal is more important as a global shipping transit than tourist experience. Whether you sail the canal on your next cruise or watch in action from land, here are 8 things you need to know about this wonder of the modern world.1. It's a short cut between the Atlantic and Pacific Oceans.The...