There haven't been archaeological discoveries of ancient giants?

According to the information contained in the links I posted, there have been many.

No offense but I don't want to watch hours of video to find the answer. Google searches have found a bunch of hoaxes, like the one in Saudi Arabia.

No offense taken.  Here are a few links to check out.  The first acknowledges the hoax you refer to but adds other allegedly real photos.

Let me reiterate that, to my knowledge, these are all Protestant sources:

http://www.bibleprobe.com/nephilim.htm
http://6000years.org/frame.php?page=giants
http://www.biblesearchers.com/prophecy/planetx/losttribes11.shtml#AnnunakiWatchers

I understand that is a lot of video to go through.  Some of the links I posted aren't even "videos" in the sense that they are rebroadcasts of radio shows with a slideshow accompaniment.  However, in them it is alleged that there have been discoveries of mass grave sites of giant skeletal remains (maybe even including body armor).  I don't recall the details, but they said they have been discovered all over the world and I believe one of the mass graves was found in the US (I want to say New Mexico, but I'm not sure).  They also allege that there are efforts to cover up these discoveries.

Thanks I'll check them out!