What is the world's biggest airplane?

Introduction
We all remember when we were small, and we would always choose the biggest of something. But guess what? Here, we have an explanation to the world's biggest airplane and some fun facts that you might consider reading!

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The world's biggest passenger airliner; the Airbus A380 -->

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The biggest?
The world's biggest airplane is the Antonov An-225. It is a cargo aircraft meant for carrying cargo. The aircraft does not have 2 or 4 engines like modern-day aircraft. It has 6 engines due to weight that it must carry. The aircraft is also the heaviest aircraft in the world. It has a maximum takeoff weight of 640 tonnes. It has the longest wingspan of an aircraft in operational service.

The Antonov-An 225 --->

So which aircraft is the biggest?
The biggest aircraft is not the Airbus A380, it is the Antonov-An 225 mentioned above.

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The comparison
The Airbus A380's maximum takeoff weight is 575 tonnes. The Antonov-An 225, as mentioned above, is 640 tonnes. The Airbus A380's wingspan is 80 meters. The Antonov-An 225's wingspan is 88 meters. Both airplanes are gigantic super-jumbos.

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Why can't the a380 be for cargo?
The A380 has 4 turbofan engines which are indeed very powerful but once filled with cargo it would most likely exceed maximum cargo weight and so it would not be able to lift off. But how can the Antonov-An 225 lift off with no issue? That's because the An 225 has 6 super-powerful engines that allow it to generate enough lift to pull itself into the air.

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Safety?
You might have thought that the massive weight and huge body might have posed a threat But all these aircraft have gone through checking and all have been approved. They have done test flights to these aircraft which allow them to fly in today's skies.