I did a search for HDRs and sorted by interestingness. These results may have changed by the time you see this post. Click on each image to see the photographs on Flickr.

Here are the top 25 creative commons attribution HDR photos on Flickr:

#1 Photo by : shivani_rana

#2 Photo by : siefken

#3 Photo by : hamedmasoumi

#4 Photo by : hamed

#5 Photo by : eneas

#6 Photo by : wili

#7 Photo by : hamed

#8 Photo by : wili

#9 Photo by : stage88

#10 Photo by : childofwar

#11 Photo by : wili

#12 Photo by : wili

#13 Photo by : wili

#14 Photo by : eneas

#15 Photo by : wili

#16 Photo by : eneas

#17 Photo by : wili

#18 Photo by : wili

#19 Photo by : sir_mervs

#20 Photo by : wili

#21 Photo by : ili

#22 Photo by : wili

#23 Photo by : 708718

#24 Photo by : wili

#25 Photo by : wili