As a kid, going back to school was never quite like this.
As part of a shipboard education program, Marty Zafman, a retired human-resources consultant, worked with Mother Teresa in Calcutta and dined in Havana -- while Fidel Castro spoke to him and his classmates for four hours.
On a hunt for fossils in Mexico, Warren Stortroen, a former insurance-claims manager, led a paleontologist and fellow diggers to the remains of a giant glyptodont, a three-million-year-old ancestor of the armadillo that's the size of a Volkswagen Beetle.
And as part of a cultural tour of Morocco this spring, Paul Tausche, a retired international marketer, rode a camel to the top of a desert dune at sunset, then enjoyed dinner and a musical performance around a campfire before retiring to a nomadic tent.
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