gThumb

gThumb is an image viewer written for the GNOME environment. It lets you browse your hard disk, showing you thumbnails of image files. It also lets you view single files (including GIF animations), organize images in catalogs, print images, view slideshows, set your desktop background, and more. gThumb also supports Nautilus thumbnails.

Homepage:
http://gthumb.sourceforge.net/
Tar/GZ:
http://ftp.gnome.org/pub/GNOME/sources/gthumb/2.10/
Tar/BZ2:
http://ftp.gnome.org/pub/GNOME/sources/gthumb/2.10/

For ubuntu :
apt-get install gthumb