What: For most travelers, Northern Arizona is defined by two colors, the fiery red of Sedona and the infinite depth of the Grand Canyon. This is understandable, as these are world-class destinations that are hard to compete with. However, if you simply pass by Flagstaff on your way to the next attraction, you are missing some of the most fascinating and diverse landscapes this state has to offer.   At an elevation of over 7,000 feet, surrounded by thick pine forests and volcanic peaks, Flagstaff is much more than a pleasant college town or a gas station on the way to your next destination. It is a perfect base for exploring natural phenomena that feel like they were taken from another planet, from ancient ghost towns to ruins carved directly into dramatic canyon walls.  The beauty of the destinations around Flagstaff is their accessibility, as these are trips of just a few hours that provide a boost of wild nature without the need for complex logistics.  Walnut Canyon, in...