Earth
Something about this prompt seems to invite pictures of big rocks, doesn't it? Especially the kind that show the geologic layers. Here's my contribution:

The picture is from a Sept. 2010 visit to Red Rock Canyon near Las Vegas. We were there right in the middle of a sunny day, when the sun was almost directly overhead, so all my photos were very washed out . But I've just acquired Lightroom 3, so I took the prompt as an opportunity to see if I could bring out some of the colors that the photos didn't originally capture. I think it worked! In fact, I wound up deciding to bring the color down a little bit, because for a while there they were unrealistically intense.

The picture is from a Sept. 2010 visit to Red Rock Canyon near Las Vegas. We were there right in the middle of a sunny day, when the sun was almost directly overhead, so all my photos were very washed out . But I've just acquired Lightroom 3, so I took the prompt as an opportunity to see if I could bring out some of the colors that the photos didn't originally capture. I think it worked! In fact, I wound up deciding to bring the color down a little bit, because for a while there they were unrealistically intense.