In addition to being one of the most significant influences on the usability of a site, navigation menus also allow designers an opportunity to get creative and add some interesting and attractive visual elements to a site. Of course, in some cases the creativity can hinder the usability of the site, but in many cases appearance and functionality can work together.
I have compiled a collection of 25 sites that use navigation more creatively than just the standard menu. These sites have been chosen based upon their appearance and there may be some that are not up to par on usability. The idea is to get your creativity flowing, but remember the importance of usability and accessibility when creating your own navigation.
For more inspirational design galleries, see: