BY KATIE MCELVEEN When it comes to river cruising, Europe's waterways-the Danube, Rhine, Seine and Douro-are usually the first that come to mind. But that's beginning to change, thanks to a spate of new amenity-laden ships and destination-focused itineraries that showcase North America's diverse history and natural beauty. Oregon's Columbia River Gorge 30 VISIT YOUR LOCAL AAA OFFICE CALL 855-736-3925 CLICK AAA.COM/WELL-TRAVELEDhttp://www.AAA.COM/WELL-TRAVELED