Typographer and illustrator Craig Ward heard an urban legend that "using the handrails on the subway is like shaking hands with 100 people." He decided to test that theory by sampling the bacteria on subway lines around New York City and photographing his findings. The results were striking and unconventional "portraits" of NYC commuters.
Subvisual Subway: The Art of New York City's Bacterial World
Source: You Tube by SciFri