Yeah, nice try. The moon landing wasn't an experiment. You're not even clear on the meaning of that.
So your argument is that because no one besides NASA landed on the moon, that NASA faked it? The fact that they went 6 or 7 different times and have loads of pictures and data (much of which is accessible to the public), eyewitness testimony from the 11 or 12 people who walked on the moon, etc., etc., -- all that doesn't count, because some other country didn't do it, too? Some other country or agency has to go to the moon, or else it's unscientific and fake?
Wow. That is absurd.