What is HDR, you ask?
BAM. see examples below.
Im not sure these small images do it justice. follow the pictures thru to see them in a larger size.
Anyways, HDR stands for high dynamic range, and basically, it means you take 3 pictures, and then take the brightest part of each of them and compose it into a new picture. ever have the problem of taking a picture into the sun, and either the sun, or the foreground is out of focus or washed out? this basically is a way to get around it. and it looks stunning, if done right.
im still learning, so these may not be the best examples, but i hope to get better.