Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary status.

As the famed North American road gears up to celebrate its centenary, head to Arizona; home to the longest remaining stretch ...

Ghost towns are a peek into the past, a portal of sorts to another time. The ghost town of Lowell, Arizona, part of the town ...