Sorry don't know how to quote. These are the questions posed by the original poster.
1) Does atheism have any unique beliefs?
Atheism is a lack of belief in the supernatural and more specially in Gods. I think this is something that confuses theists as they see atheism as a denial of God which is isn't. An atheist doesn't need to deny the existance of something that they know doesn't exist.
2) Is the so called "freedom" of Atheism just the illusion given by an endless empty space that traps and imprisions the intellect?
I don't understand how you consider atheism as imprisoning the intellect. Atheism gives an individual free from the irrational contraints that are imposed on the mind by religion. I assume by endless empty space what you imagine the hole left in your worldview if you denied the existance of your God. Fortunatley I don't have this hole in my worldview as religion isn't intergrated into my personality.