In the center of the ideological line you have centrist or moderates. You have moderate democrats or moderate republicans. You have the modern media.
To the right of that are establishment republicans, conservatives, libertarians, monarchists, Theocracy, and then fascists. People on the right are considered right wing. Fascists, Nazism, and Hitler are considered far right. To the left you have establishment democrats, liberals, socialists, and communists. People on the left are considered left wing, with socialists being far left.
Yet this is the wrong way of looking at it, because it makes it look like radical, dictator thugs like Hitler are right wingers. So many times you hear liberals refer to Hitler as a right winger. You hear them talking about guys like Saddam Hussein as a right winger. Many Jewish people say they don't like conservatism because Hitler was a radical right winger, and conservatism is right wing.
Nazism is an extreme left wing ideology. It is national socialism. His desire was for national healthcare, He wanted to expand government to bring everyone under his control. He was a socialist. He was a radical leftist. This is how he mesmerized people, and got them to support his radical agenda. He told everybody that he was going to solve all their problems. He said he would give them everything for free.
Yet then when they voted for him, the in essence gave up their liberties in exchange. No longer could they make decisions on their own. He, in essence, controlled the people. He then decided to cross over to the other extreme, and took it upon himself to kill Jews. This was fascism, and this was far right. It was Hitler deciding who was fit to live and who wasn't. But it's not really far right, it's a form of government right next to national socialism.
Most people ignore the fact that Hitler's ideology was far left and focus on the fact that he killed Jews, and therefore was far right. But if you diagram the ideological spectrum as a circle, they are one and the same, at the top of the circle. So Hitler cannot be labeled as conservative. He was not far right. He was lunatic.
So many times we listened as liberals called George Bush Hitler-like. This is because they were ignoring the fact he was a far left wing national socialist and were focusing on the fact he was a far right wing fascist. But if you diagram the political spectrum as a circle, you can see that George Bush was not anything close to what Hitler was. Actually, you could probably make the argument that Obama is closer to Hitler than Bush or conservatives.
Ahmadinejad was often described as a conservative, but that's because those doing the describing were looking at a straight line. Once you draw the circle and put it in real perspective, Ahmadinejad is on the lunatic fringe of both sides.