Images/Mountains (11)
Images/People (2)
Images/Soldiers (1)
Images/Footballers (207)
Images/Sportsmen (18)
Images/Musical_artists (1)
Images/Lakes (11)
Images/Animals (104)
Images/plants+animals+etc (14)
Images/Rivers (73)
Maps/Rivers (44)
Images/Galaxies (6)
Images/Bridges (1)
Images/Steam locomotives (1)
Images/Buildings (8)
Images/Stadiums (20)
Tool with the same purpose: http://toolserver.org/~magnus/fist.php (different design - more posibilities, more images but extremely slow and with multiple false positives)