This is the most round object in the entire world and apparently it is completely priceless. This is a pure polished silicon sphere.

If you're looking for a history lesson and a bunch of shiny object then look no further then this video. You will understand where the measurement of the Kilogram comes from and why that ball is so round and so expensive. also you will be happy to know that we are like 1 of only 3 countries that do not yous the kilogram. in other word's USA! USA! USA! stick that in your shiny round sphere and smoke it!