Choose a place name from the list on the right that best describes the image on the left. You need to click on a top level keyword to expand the second level keyword, and click on a second level keyword to expand the third level ones, and finally click one third level keyword to finish your selection. Use the scroll bar to explore all the possibilities.


outdoor natural

outdoor man-made

By making judgments about these images, you are participating in a study being performed by cognitive scientists in the MIT Computer Science and Artificial Intelligence Laboratory. If you have questions about this research, please contact Dr. Oliva at Your participation in this research is voluntary. You may decline further participation, at any time, without adverse consequences. Your anonymity is assured; the researchers who have requested your participation will not receive any personal information about you.

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