The tour of Boeing started with us being bussed to the building where the seven hundred series of planes are made, particularly the 747s. It is the largest building in the world, measuring 13,385,378 cubic meters.  It has several entrances, several floors, and, of course, huge double doors through which the new planes can be rolled out. Our guide told us so many facts that I actually stopped listening; I just wanted to watch the men and women working on these huge planes. I did, however, pick up some information. The wings of the 747, for example, can hold up to 57,000 gallons of fuel. I saw that every piece of large equipment either had wheels or hung from the ceiling. This was because as the planes develop and get bigger, equipment needs to move out of the way. And, the day that a new plane leaves, a clear path must be made for it to get out of the building. The Boeing plant is in Everett which is to the north of Seattle. It has been there since 1943, the giant factory being planned in the 60's. Mr. Boeing had a German father and an Austrian mother, but was born in Michigan. After he became a pilot, he bought a hydroplane and came to Seattle. He soon broke the plane, and then told a friend of his, "We could build a better plane ourselves and do it faster." And that became the mission and destiny of Mr. Boeing. Looking around the factory gave me a sense of how serious and efficient Boeing is. The building itself(1) has to be organized by a mastermind! It is so packed with equipment, parts, and people, that to function correctly, someone with a great sense of design has to be in charge. Unfortunately, we weren't allowed on any planes because they already belong to airlines. Also, I'm sure, hundreds of tourists would be a distraction to the workers and also create a risk of injury or an error in building. We were kept far away from the important work. As we left, the guide told us about the new line(2) of planes called Dreamliners. They are smart planes that adjust the interior light and air to reduce jet lag. Also, more original materials are gradually being replaced with things like carbon fiber to make the planes stronger and lighter. This really is a time of advancement in technology, and the factory shows a sense of excitement about the future of flight. 1. 'The building itself' the word 'itself' is not totally necessary. I used it because I went on to emphasize the use of space inside the buiding, as if I was focusing in on what it looks like. a. The singer signed my notebook herself! b. The homework itself is easy, it just happens to be tedious!  2. 'Line' of planes really means a series or a group. a. Gucci has come out with a new line of handbags. b. Nissan has a line of electric cars, the first of which came out in 2010.