There's sustainablilty and durability for you

Archaeologists in Sinai near the Palestinian border have recently let the world know that they have a new find. A 3,000 year old fort made out of mud bricks. Who says masonry isn't a sustainable, durable material? The Egyptians certainly knew their architectural detailing and structural engineering to make their masonry buildings last so long. Here it is 3,000 years later, and the 550 yard by 275 yard fort with 13-foot tall towers is still standing.