If you like this, check out the work of James Balog http://www.jamesbalog.com/portfolio/index.html Go to the Tree portfolio. Many of these images were created by rappelling down a tree opposite the subject and taking a series (sometimes hundreds of frames) of images, then stitching them together. Some of these images took him more than 2 weeks of work to assemble.

He is also the guy responsible for "The Extreme Ice Project"