The Nikon Small World competition is a showcase for the best photomicrography—photographs of tiny things through a microscope—on the planet. The winners for the 2007 competition have been chosen (but have not been announced). For the first time, Nikon is allowing visitors to see the top 100 entries and rate them. The photographs are surreal, otherworldly, and strikingly beautiful. Well worth a visit if you are interested in extreme macro photography.
For more about photomicrography (in case you want to enter the 2008 competition):