Only 8% of the world’s currency is physical money. The rest exists only on computers.
20
The upside-down ketchup bottle earned its inventor 13 million dollars.
15
Singapore has the world’s highest percentage of millionaires, with one out of every six households having at least $1,000,000 US dollars in disposable wealth.
8
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
The hands of the clock on the back of the $100 bill are set at approximately 4:10.
72
A Native American tribe in South Dakota collects bottle caps left by campers, using them as currency. Several banks in the area now recognize the caps as legal tender.
225