Martian architecture will have to be different from any existing styles on Earth, say 53 percent of respondents in this poll at NewMars. But weirdly, 15 percent believe that we'll build in "a mixture of Greek and Roman style" on Mars. And another 9 percent each believe we'll build in an "Egyptian" or "Celtic" style. WTF? Luckily, some people have come up with slightly more realistic designs for Mars habitats. Here's a gallery of possible (and one or two discredited) Mars building designs.