Want to know what Yosemite National Park looks like right now?  I found this interesting app that takes you on a map tour of our National Parks via live webcams.

I found some of the webcams not working or displaying an old image, but the ones that do work give a great picture of that area about the time you load the app.  I found if you reload the app a few minutes later, those webcams that are working will update their video feed.  Pretty cool.