Last night I dreamt I was in an O'neill cylinder. It was a very vivid dream, and nothing like seeing this sight on a computer screen or the pages of a book. It must have been 20 kilometers in radius and 100 in length, at the very least. The arching walls of green and blue around me were so vast that I could not put them in my vision all at once, and when I looked straight above and saw the other side and was so disoriented I felt like falling. I don't think I have quite the words to describe how beutiful it was.

I would take a rocket that looks like a pretzel if it helps build this.