Biggest things

Blue Whale:

The largest animal on Earth, this marine mammal can reach lengths of up to 100 feet and weigh as much as 200 tons.
Mount Everest:

The highest mountain in the world, it stands tall at 29,032 feet (8,849 meters) above sea level.
The Universe:

Everything that exists, from the tiniest particles to the vastest galaxies; continuously expanding.
Pacific Ocean:

The largest and deepest of Earth's oceanic divisions, it covers more area than all of the Earth’s landmass combined.
Antonov An-225 Mriya:

The largest airplane ever built, originally developed to transport the Buran space shuttle.
Amazon Rainforest:

The world's largest tropical rainforest, often referred to as the "lungs of the Earth".
The Internet:

A vast network connecting millions of computers globally, allowing them to communicate.
Great Wall of China:

A series of fortifications made of stone, brick, and other materials, primarily built to protect against invasions. It's so extensive that it can be seen from space.
Solar System:

Our local neighborhood in space; consists of the Sun and all the celestial bodies that orbit it, including planets, moons, asteroids, and comets.
Sahara Desert:

The third-largest desert in the world, and the world's largest hot desert, covering over 9,200,000 square kilometers