When one new thing is being created each day, things of the past that are one of a kind, become invaluable. From jewels worn ...

He added: "The remarkable price achieved has smashed all previous world records for Queen Elizabeth banknotes and is now the most expensive note in this popular field to ever sell at auction." The ...

As the two most-traded currencies on the planet, the U.S. Dollar and Euro always rank highly. But they're far from the most valuable out there right now. Hint: It usually helps if a country's currency ...