I found out about a portal to this place called the "Aether". All you need to do is make a frame with 4 glowstone on the bottom and top and then 5 glowstone on each side. Then you fill it with water. It should take you to a place that kind of looks like it is really foggy. I haven't gotten a chance to test it yet so if it doesn't work don't get worked up. I'm going t post a pic of what the portal should look like.