This is always a great subject to discuss and learn about in the coming years, In grade school we watched a documentary on Egyptian tombs. The mysteries lie within the hidden tombs, although people are sceptically burden d on where to look. It could take anywhere from next week to another thousand years. Some artifacts may be thousands of feet underground. Since the earths evolution has shifted and erosion has occurred. If the Egyptians don't want to be found, they wont. Unless, they were actually stolen by grave thieves. Or just moved to another location. It's fascinating how much we have discovered and how much is still out there. Everything is placed at a certain location for a reason. It takes someone who knows what they are talking about to figure it out.