Excerpts:
In 1995, Frank and Audrey Peterman, an adventurous middle-aged couple in Broward, Fla., piled into their trusty Ford F-150 pick-up and drove across America to visit the natural wonders they had never seen — the Badlands, Yosemite, the Grand Canyon. In eight weeks, they drove 12,000 miles through 40 states and visited 12 national parks.