The Surprising Ways Mars is Hostile to Life

What about Venus. I know you can't just go down to it's 450 degree oven of a surface to mine materials, but you can still live in it's atmosphere many miles up. Huge balloons can be covered in solar panels for power. But once again, where to get the building materials. You would either need to capture and mine nearby asteroids, or make aerogels with the Venusian atmosphere. So your basic structural elements like walls, floors, windows, supports, and balloons could be made in situ, anything else like metals would have to be shipped in. That is unless you can develop mining and refining equipment that operates at 450 degrees. unlike Mars; Venus has a generous atmosphere and you won't get zapped by deadly radiation. And i would take a 60C(140F) sky city over the dark and brutally cold Titan. It goes to show how important aiming for interstellar travel is. It would be nice to have more than one planet that has both an atmosphere and a temperature that our technology can easily operate(and you know, support life). EG temperatures warmer than -100C and cooler than 100C. Mars meets that temperature criteria but it lacks any real atmosphere, basically larger version of the moon. Venus sky city is probably the only place other than earth where you can have windows in your Apartment and natural sunlight shining in. Pretty much the rest has you fully enclosed in many feet of radiation shielding. Though with enough power one could look at earth for clues on how to shield from radiation. A strong enough magnetic field to protect the crew and residents of a ship, colony, or station