I would go through the door labeled Middle Earth. I would go there to toss a ring into the fire at Mordoor. I would have companions such as Frodo, Sam, and Gandalf. I'm saying this because I love the Lord of the Rings movies. They appeal to me because I like storys with great adventure, suspense, and it's funny when you meet Golem (and a little weird). If I was in this world I would have to remember one cannot simply walk into Mordoor.