Travelers are voting Navajo Steel Arch Highway Bridge, Grand Canyon National Park Research Library and Walkup Skydome as the best of 4 key buildings in Coconino County. There are 1 key building in Flagstaff a city just 33 km from Coconino County and 1 key building in Valle which is 37 km distant. The most popular of these are Walkup Skydome in Flagstaff and Grand Canyon National Park Research Library in Valle. You can find 26 key buildings in Arizona and 2813 key buildings in the country of United States. Our members favorite in Arizona is Sun Devil Stadium and Independence Hall is the top pick in United States. Want more? Check out our map of key buildings in Coconino County.