While not technically in Flagstaff, it's a short drive away. Visiting the Grand Canyon is a must-do when in the area. You can hike along the rim or take a guided tour.
Explore the unique volcanic landscape, hike the trails, and learn about the geological history of the region.
Discover the wonders of the universe at Lowell Observatory, where you can stargaze through powerful telescopes and learn about astronomy.
Learn about the natural and cultural history of the Colorado Plateau through exhibits and collections at this renowned museum.