Mars has a very extreme environment; it has no breathable air, very light gravity, no magnetic field and a very thin atmosphere, which results in very high levels of radiation.From an architectural perspective, architects need to think about building special atmospheres where air can be sustained, as well as shells or structures that protect humans from radiation. Four main types of building structures appear to be the best solutions for a Martian base: rigid metal or plastic based structures, expandable structures, underground tunnels, and structures made of brick and rocks.