The streets of Victor, Colorado, once a gold rush town, are paved with low-grade gold.
78
The search engine Google got its name from the word 'googol', which refers to the number one with a hundred zeros after it.
56
A million dollars' worth of $100 bills weighs only 22 pounds!
32
At 90 degrees below zero, your breath will freeze in mid-air and fall to the ground.
25
Fine-grained volcanic ash can be found as an ingredient in some toothpastes.
55
Sunflowers can be used to clean up radioactive waste.
17
In the White House, there are 13,092 knives, forks and spoons!
51

