Did you check out this site? http://www.cvpapers.com/datasets.html

There is also SOD: http://elderlab.yorku.ca/SOD/

or u may check the following scene databases that contains a variety of indoor outdoor scenes:

http://groups.csail.mit.edu/vision/SUN/

and http://www-cvr.ai.uiuc.edu/ponce_grp/data/

I would recommend the 15 Scenes category dataset. Check out this paper:

http://www.cs.ucf.edu/~liujg/co_clustering.html

and also this list of available datasets:

http://vision.stanford.edu/resources_links.html

I have used the INDECS database that is quite useful: http://www.cas.kth.se/INDECS/

Alternatively, there are a few others in http://www.imageclef.org/datasets