Gold:
The world produces a cube of gold that is about 4.3 meters cube every year.
In other words, all of the gold produced worldwide in one year could just about fit in the average person's living room!
Platinum:
If you assume that the world has produced 3.6 million ounces per year for 50 years to estimate the total worldwide supply, all of the platinum in the world would fit in a cube that is 6.3 meters (about 20 feet) on a side. In other words, all of the platinum in the entire world would easily fit in the average home!
http://money.howstuffworks.com/question213.htm
I hope you find this as fascinating as I do
