Here we have an amazing collection of free 3D images for 3D glasses. 3D images are also called anaglyph images. You will need Red/ Cyan 3D glasses to the view these images. If you do not have 3D glasses, you can always make your own 3D glasses. Here are two useful tutorials
How to Make 3D Glasses From Sunglasses
How to Make 3D Glasses From Jewel Case
Once you have made your 3D glasses, you can sit back and enjoy the images below.
Alternatively, You can buy 3D glasses here
Pro-Tip: Click on any image to enlarge
Related: Free Engineering Wallpapers