6.
Royal Canadian Mint Superman Coins
Number six on the list is as awesome as possible, the Royal Canadian Mint creates a coin to celebrate an unusual character.
For the 75th anniversary of Superman the Canadians received a commemorative collection of coins that could be used as actual currency if wanted.
The coin varies in denominations and has values starting from $10 to $75 and also vary in Superman depictions.
So, the coins have images that recreate the evolution of the character over the years, meaning that some coin could have old-school pictures and some more actual ones.
Released in 2013 the coins have huge market values, the currency being sold for ten times the actual value.
