It's National Park Week

Henry Grabar highlights National Park Week, and a great ad:

It's not often you hear folks complain about the high cost of visiting national parks.
But if it's the price of admission that's been keeping you in front of the television instead of enjoying America's natural splendor, this is your lucky week: it's National Park Week, which means that entry to the nation's 401 National Parks is free until Sunday. That includes everything from the Grand Canyon ($12 per person, $25 per vehicle) to Antietam ($4 per person). There are plenty of National Parks in cities, too. Here's a map where you can look for parks near you.

That ranks up there with this great video for the census of agriculture.