Self-Sufficient Mars Base
A base that would produce food and energy to keep its inhabitants alive. All the passages are enclosed so that nobody would get sucked out into space. It is built in 4 quadrants. Quadrant one has all the housing and energy storage. Quadrant two has spaceship landing pads. Quadrant three has many solar panels to generate energy. Quadrant four holds several large farms inside the enclosed building so that the plants survive against Mars cold temperature.