Coins usually survive in circulation for about 30 years.
66
The most expensive cow in the world was sold in 2009 for $1.2 million.
-3
The co-founder and CEO of SnapChat, 23-year-old Evan Spiegel, turned down an offer of $3 billion from Facebook and then a $4 billion bid from Google.
7
In 1996, an Iraqi man named Sam Eisho moved to Australia and used the welfare system as income. Some years later, he became successful and wrote a cheque for more than $18,000 to the Australian Government (every cent they gave him).
11
There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
22