Can you believe that Spanish artist Juan Francisco Casas, 33, recreates these incredibly realistic portraits with only blue Bic pens? The popular drawings measure up to 10 feet high, use up to four 14p ballpoints and can take weeks to draw. I can't even fathom how much pain his wrist must be in once he's finished a piece, but if those wild snapshots are any indication of the life he leads, I bet he doesn't mind suffering for his art one bit.
Images: juanfranciscocasas.com