ftp://ftp.acs.appstate.edu/pub/images/gif/  direct

[DIR]war/  direct  209+ twin directories
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[DIR]tv/  direct  786+ twin directories
[DIR]tron/  direct  129 twin directories
[DIR]trains/  direct  20 twin directories
[DIR]stanford.gifs/  direct
[DIR]sports/  direct  635+ twin directories
[DIR]space/  direct  793+ twin directories
[DIR]religion/  direct  446+ twin directories
[DIR]raytrace/  direct  105 twin directories
[DIR]planes/  direct  200+ twin directories
[DIR]fractal/  direct  202+ twin directories
[DIR]drwho/  direct  15 twin directories
[DIR]computers/  direct  105 twin directories
[DIR]cities/  direct  188 twin directories
[DIR]art/  direct  3281+ twin directories
[DIR]appstate.gifs/  direct
[DIR]animals/  direct  1186+ twin directories
[DIR]anatomy/  direct  9 twin directories