I see that you posted a "???" to the above statement...
Unless I miss my guess, that reference is to the U.N. Building - the land on which it stands isn't United States' soil.
I'm not exactly positive as to whom it belongs, as the un isn't a world power.
It's a conglomeration of Terrorist States that are bent on the destruction of the very nation that funds each and every one of it's (the un) Peacekeeping (Read: Terrorist) activities.
The United States should charge them rent, for everything from parking spaces to the air that building displaces. Something in the neighborhood of, say, 10 Billion Dollars per year should be a good start.
You're absolutely right of course... Something that I wasn't aware of until this thread! It's totally absurd!!!