Photo 1 and 2 are from a hike I took last year.
Photo 3 and 4 are of a building in San Francisco.
Step 1: Materials
If you do not have CS5, you can always download a free trial from Adobe
Step 2: Pick your Picture!
Step 3: Shadows and Highlights
Step 4: Desaturate and Hard Light
Look back over to the layers, where there is a pull down selection box. Find the "Hard Light" button.
Now it's starting to look like a real HDR!