One of the best things America ever did was establish the national parks system, conserving the nation's ecological heritage and pristine wilderness for everyone to enjoy.
But, while visiting the parks is a family road trip classic, it's not exactly an inexpensive experience for many of us, not to mention how time consuming it can be.
Good news! You don't actually have to leave your couch to see some of America's most glorious landscapes. Powered by Google Earth, a whole bunch of parks offer free virtual tours.
Check out some of the highlights!