I know what you are getting at with this and I don't know what to say. I'd say.... no..... the government owns it over you owning it. You can't just up and declare your ten acres as "Fredisia" , or "Bobdom" and call it another country. Sucks, sorry.
I think where they were going is, you can purchase it, but the laws of the state (and the country) still govern it. You do not have universal freedom to do as you please with it, but there are certain rights of posession you enjoy.