Flagstaff – Did you know? Arizona Snowbowl has the world’s only gondola that reaches the highest point in Arizona (3,800 meters) with views of the Grand Canyon! The only place where visitors can go ziplining in the world’s largest ponderosa pine forest at Flagstaff Extreme. And Flagstaff is the world’s first International Dark Sky City, which also discovered Pluto – a perfect place for astro-tourism! Additionally, Lowell Observatory has the world’s only open-air rooftop planetarium with heated seats. Experience the fascinating and unexpected world of Flagstaff, Arizona.