Aerial America is an informative and relaxing look at each US state entirely via aerial footage. The series is gradually being posted to YouTube, and as of this writing they have added all states alphabetically through Louisiana. Alaska's Call of the Wild is particularly nice.
Via the series page:
For centuries, thousands of adventurers have answered Alaska's "call of the wild," seeking thrills and fortunes in a state rife with postcard-perfect beauty… and lethal dangers. Take flight across ancient glaciers, rugged mountain ranges, primeval forests, and pristine waterways. Then discover how the state's unique charm has attracted bold visitors, from Russian fur traders to a young survivalist on a one-way trip "into the wild" to the thousands of dog sledders facing off in the "Last Great Race on Earth!"
Image: YouTube / Smithsonian