Venus for example is hot as hell on the surface but there is actually a band of the atmosphere which humans could hangout unprotected in, its breathable,
The atmosphere is carbon dioxide with an aerosol of liquid sulfuric acid. (?)
Hm, went back a reread where I originally saw that and I completely mis-interpreted. Its not breathable, rather from ~50-65km off the surface it is roughly 1 bar in pressure with temperatures from 0-50C and breathable air would 'float' at this height due to the density of the atmosphere. Sorry for the foul up.
