By Anupum Pant

A place where planes like the Boeing 747, 767, 777 and 787 are built, has to be huge. But this Boeing factory in Everett, Washington, home to 30,000 workers (working in 3 shifts), is so huge that the inside of the building has a climate of its own. It is the largest building on Earth. If you get a chance, you must not drop a chance to take the 90-minute tour of this factory (it costs $15 per adult). Here are a few things to note about it…

The size: The volume of this factory is 472 million cubic feet or 13.3 million cubic meters. That is enough to fit the whole Disney land and still be left with a 12 acre place to park the vehicles. In other words, it could fit 800 standard sized hockey rinks. Or it could fit in 75 football fields. Or it can hold about 12 empire state buildings! You get an idea how huge it is, right?

Largest Digital Mural: Being huge comes with its own side effects – another world record. The doors, like the building, are huge too. The factory has 6 doors, where each of them is 82 feet in height and 300-350 feet in width! You could bring in an NFL field (as in, fit the length of it) in through one of these. But what is more interesting about these doors is that they are covered with a 100,000 square feet of digital graphic. This is the largest digital mural in the world – printed by SuperGraphics, Seattle. It took the workers 27 days to install the digital mural.

Small City: Had this place been slightly larger, it could have had enough space to fit in a country – The Vatican city. Still, it isn’t small. The building is like a small city with it’s own fire department, security force, fully equipped medical clinic, electrical substations and water treatment plant. To move around in this little city, the employees use 1,300 bicycles.

Its own Climate? Now, since it is like a small city, it has to have its own climate, right? Yes. When the building was first built, clouds got formed inside and some say it even rained inside (mostly, not true). But rainbows have definitely been seen inside.

The temperature inside the building is controlled by those 1 million bulbs that are used in there. During winters, the bulbs bring warmth and during summers the doors are opened and air circulating fans are switched on to let the fresh Everett breeze come in.

Bonus fact: The network of 26 overhead cranes have about a total of 39 miles of ceiling rails inside the factory!

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