Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
A cauliflower that weighs almost 72.5kg has broken the world record by almost 3kg.
5