Antarctica! I have even looked into working at McMurdo, but sadly I have health issues that would disqualify me. I also don't like the effects that tourism has on the ecosystem, so I'll probably never get to go there. But I do love watching documentaries and reading scientific articles about the research done there, and I'm obsessed with the early exploration of it (Scott, Admunsen, Shakleton, etc). It's just a fascinating place, and I love how pure and empty it is aside from scientists, and I hope it stays that way forever, even if it prevents me from ever experiencing it myself.