Many of the most fascinating places on the Earth lie beneath the surface of the planet's oceans, which makes for colorful photography and desktop wallpaper.
This gallery was originally published in December 2010.
Remember, click the thumbnail image to get the highest resolution version of each image.
Mark W. Kaelin has been writing and editing stories about the IT industry, gadgets, finance, accounting, and tech-life for more than 25 years. Most recently, he has been a regular contributor to BreakingModern.com, aNewDomain.net, and TechRepublic.