"Nick Veasey uses x-ray technology to create mesmerizing and intriguing art. In a world obsessed with superficial appearance it is a refreshing change to be able to look beyond the surface."
Excellent and impressively expansive studies of the human form in space, lead, terra cotta, steel... The "Fields" and "Quantum Clouds" projects are a good place to start, but you could spend hours here.
A huge collection of excellent drawings, realist (and surreal) photography, painting, collages, and more. Good for wasting a few hours and wishing you were cooler.