Nether portals - we all know what they look like, what they do, even that odd sound they make. Nothing special, right?
One thing about them that has always bugged me is, not being able to see through them, to see what is on the other side. In a manner of speaking, the Magic Portal does exactly this! On a strict technicality, it isn't actually seeing the nether on the other side, but SethBling explains it fairly well in the video above. Enjoy!