Adventurers can soar above the city courtesy of Hot Air Expeditions, watching the Arizona sun rise above the majestic Sonoran desert - which you can hike with REI. Not forgetting the incredible ...

There's a 2-mile-long crack in the desert of Arizona. At 10 feet wide and up to 30 feet deep in some parts, it is the largest of its kind. It continues to grow. Follow BI Video: On Twitter More ...