If you want to invest in the world's most valuable coins, you'd better be ready to pony up some serious cash. The priciest ...

Rare coins and bills that haven't been released to the public are often worth a lot of money thanks to an error or specific mint condition, but what about $2, $50 and $100 legal tender notes that ...

50p coin with the Atlantic Salmon is believed to be the most collectible yet A 50p with an Atlantic salmon on one side and the King’s portrait on the other is the rarest such coin in circulation ...

Each Ripple coin, called an XRP, is now worth about $2.34 - far higher than the half a US cent they were worth a year ago. Bitcoin still remains the most valuable ... about 100 banks have signed ...