I take each claim of "structures" on the moon with a grain of salt. No doubt any LARGE structure would be able to be seen by the powerful telescopes
of the amature astronomers...
However, I WANT to believe and something inside of me tells me it's true--there ARE ancient structures on the moon.
If we go back, way, WAY back to the Vedic texts of India, more specifically the Rig Veda-- descriptions of anti-gravity flying "saucer-like ships"
are documented as fact.
I've read the translated Sanskrit texts. They go into great detail about the formulas for the metalic alloys needed to construct the ship, the power
source (a mercury vortex engine) and even down the clothing a pilot would wear and the food they would need to eat.
One of the most astounding things I read was a description of a "war" that was fought between what we might consider "Atlantean" (or just other
advanced peoples 15,000 years ago) on the moon.
It does not surprise me that the medicinal lore we learn from these most ancient texts are now being proven correct, as well as the metallurgical
compositions for the alloys described.
Not to mention the strange green glass and high highly radioactive areas that are now being found in India that are referenced in the Vedas as
battlegrounds for a "terrible weapon" (can anyone say nuclear?)
There is much we can learn from ancient cultures if we but are willing to entertain that perhaps the "stories" might be a form of "history"
infused with good story-telling.
The manuscripts did not say definitely that interplanetary
travel was ever made but did mention, of all things, a planned
trip to the Moon, though it is not clear whether this trip was
actually carried out. However, one of the great Indian epics,
the Ramayana, does have a highly detailed story in it of a trip
to the moon in a Vimana (or "Astra"), and in fact details a
battle on the moon with an "Asvin" (or Atlantean" airship.
This is but a small bit of recent evidence of anti-gravity
and aerospace technology used by Indians. To really understand
the technology, we must go much further back in time.
The so-called "Rama Empire" of Northern India and Pakistan
developed at least fifteen thousand years ago on the Indian
sub-continent and was a nation of many large, sophisticated
cities, many of which are still to be found in the deserts of
Pakistan, northern, and western India. Rama existed,
apparently, parallel to the Atlantean civilization in the
mid-Atlantic Ocean, and was ruled by "enlightened Priest-Kings"
who governed the cities, The seven greatest capital cities of
Rama were known in classical Hindu texts as "The Seven Rishi
Cities."

SOURCE
I will continue and try and nail down the exact books/pages from the Rig Veda these descriptions come from...I have read them a couple of years ago in
a library and was blown away--a simple web search gave me the above mentioned quote.
Truth is stranger than fiction!
[edit on 7-11-2007 by MystikMushroom]