Time travel used to be thought of as just science fiction, but Einstein's general theory of relativity allows for the possibility that we could warp space-time so much that you could go off in a rocket and return before you set out.
Vampires are sexy to a woman perhaps because the fantasy is similar to that of the man on the white horse sweeping her off to paradise.
What you do once you're beyond the confines of your local lift service can be as limitless as the mountains themselves.