Exploring earth's treasures

Donald Olson is a novelist, playwright, and travel writer. He has published several novels, most recently "The Confessions of Aubrey Beardsley" and, under the pen name Swan Adamson, "My Three Husbands" and "Confessions of a Pregnant Princess." His plays have been staged in Europe and the U.S. Donald Olson's travel stories have appeared in "The New York Times," "Travel + Leisure," "Sunset," "National Geographic" books, and many other publications. He is the author of "Frommer's Vancouver & Victoria, England For Dummies" (winner of the 2002 Lowell Thomas Travel Writing Award for Best Guidebook), "London For Dummies," "Germany For Dummies," "Frommer's London from $90 a Day, Frommer's Portable L…