Even the most obscure corner of the globe can find some claim to fame. Progreso, Mexico, although not an overly impressive port, does have the honor of hosting the world’s longest pier. Progreso sits on a limestone shelf that slopes out to sea at an amazingly slight grade. As a result, the pier that serves arriving cruise ships is four miles long. Definitely not a pier you would want to stroll along, though. A ten minute bus ride is your best ticket into town.