Have you READ "Dark Mission?"
The detailed answers to your very important POLITICAL question -- because the entire "we never went to the Moon" hoax is, in fact, THE "clever political disinformation" on this entire issue ... to try to HIDE what's REALLY on the Moon -- are carefully and exhaustively documented in the book .... :)
Now -- WHY are "giant, glass-like structures," constructed by "somone" on the Moon, "impossible?"
Because YOU don't know how to build them .... :)
NASA itself, in its own "future lunar basing studies," has proposed creating NASA bases on the Moon MADE OUT OF GLASS (because most of the confirmed lunar surface composition IS "glass" -- ordinary "silicon dioxide"); the specific technical studies on these bases are cited in "the book" .... :)
Or, is it the sheer SCALE that "bothers" you ...?
Remember: in less than five hundred years, humans have gone from the wooden boats that Columbus used to locate the Americas, averaging around 75 feet long and displacing an average ~100 tons ... to steel alloy "super tankers" ... some measuring over 1500 feet long (that's over of a quarter of a MILE!) ... and displacing over HALF A MILLION TONS!
And, that's for MOVING transportation systems.
Static buildings (the latest skyscrapers in the oil-rich countries, like the United Arab Emirates ...) are being built almost HALF A MILE in height -- and under one Earth "g" ... and ... on a planet which is also known for "pesky hurricanes."
What could be accomplished on the Moon, WITHOUT an atmosphere (or major "moonquakes") -- with a structural material (glass) which, in a lunar VACUUM, is (measured) as "twenty times STRONGER" than alloy steel ...?
It's "just" technology .... :)
So, what we're seeing on the Moon is NOT "impossible" ... to a sufficiently advanced technology, and even HUMAN culture ... in another "couple hundred years."
Or -- is your REAL "sticking point" the fact ... that it's NOT "ours?" :)