Here's my first High Dynamic Range photo - HDR.
I took 3 bracketed aperature photographs (on a stable mount), then tone blended the 3 images. You end up getting a rich looking image that moderates for extreme lighting and tonal gradient differentials.
This isn't the best example - it was late when I took this first one last night... this weekend I might take some cool shots and then you'll really see how cool they can look.