Who built the moon?

I remember red some where something abut when the modular space craft landed on the moon in 1969, something taped or registered a kind of metalic sound echoing all over the place inside the moon, if this is true it can be a evidence of a possible artificial hollow moon. any one know something about this "echo"!?, i don't remember where i red it.

Im trying to find something about the echoe i spoke later, but nothing until now, but instead i found a exelent compilation and explanations about all what is "wrong" in the 1969 moon landing, interesting indeed:

Link


enjoy it

Some links i found talking about some theories about a artificial moon and possible evidences of it:

Theorys of a artificial moon:

Weird site, but exelent theorys about this subject:


The moon is a "Trashcan", why so dificult to get a foto of any of this objects?

i will post more if is find something interesting, im sleepy already, cya