This ambigrammatic tattoo is one of the coolest pieces of ink I've ever seen. An ambigram is a word that can be read from more than one direction, whether sideways, backwards or upside down. The process takes a lot of time and even more skill.
This ambigrammatic tattoo by John Langdon says "Art & Science" but when it's upside down, it reads "Philosophy." It’s like getting a 2-for-1 deal on your tattoo, without the extra pain.