The size of the Universe on a human scale
It is often mentioned that the Earth is 12,750 kilometers in diameter, that the Moon is 385,000 kilometers from us, that the Sun, which measures 1.4 million kilometers, is 150 million kilometers away from us, than Pluto, the most distant planet is 6 billion kilometers from here, while the nearest star is 4.3 light-years away and the Universe (as it is conceived) extends over fifteen billions of light-years on both sides of us .
