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 ...

Do you want to get into coin collecting? Some of the most expensive coins ever sold at auction were minted in the U.S., many within the past century. You might still find them in circulation ...

An oversized numeral makes this important coin one of the rarest in South African history. Read the story of its $2 million ...