The Super-K is a neutrino observatory in Japan; it is 1000 meters underground, contains a lake of 50,000 tons of pure water & every inch of the the 41 meter high walls are lined with over 11,000 photomultiplier tubes. It is also one of the most amazing man made objects I've ever seen images of. Super high res photos available here. More photos of the construction & recent restoration. Via.
Make Me Heal is an online community serving the needs of America's vast cosmetic surgery audience, with tips & tricks on what works best to heal scarring, etc, including an encyclopedia of terms. To promote their vision of "Celebrating Natural Beauty With Enhancement" they're hosting the first ever Plastic Surgery Beauty Enhancement Awards, with categories like Best Breast Augmentation (NSFW) and Best Male Liposuction." Contestants must submit before, during & after shots of the procedure, and site visitors can vote on their favorites.