From what I could see, it led to some part of outer space. [And where Tony put the nuke in, risking his life for everyone. He doesn't really like Stark's personality all that much still, but Steve knows that he's been wrong about him too.] Couldn't tell you the exact coordinates though. And he definitely wasn't, wanted to enslave the human race. But things didn't work out for him, didn't work out for the last guy that tried it either.

[Steve nods a little at her description. He remembers hallucinations and voices from the last time he's encountered it.] You managed to help him snap out of it?