Happy Statehood Day, Arizona. From Stevie Nicks and the Colorado River to creosote and Camelback Mountain, here's why we love the Grand Canyon State.

Happy Statehood Day, Arizona. From Stevie Nicks and award-winning Mexican food to small towns and Camelback Mountain, here's ...

This story appears in the September 2017 issue of National Geographic magazine. Patrick Perotti scoffed when his mother told him about a doctor who uses electromagnetic waves to treat drug addiction.