Find out what these 7 coins just sold for, with some selling for close to a million US dollars! See why they're so valuable ...

All dollar coins are worth at least a dollar, which is known as their face value. Some are worth many times that, however. These are six of the rarest silver dollars and their values.

Discover some of the most valuable American gold and silver Eagle coins ever minted, plus some tips to help determine how much yours could be worth.

Although coin collecting is intended to be a fun, interesting and potentially lucrative hobby, it's also a big business -- and like any form of trade, there's always someone out there who'll try to ...

In addition to all the other events this year, U.S. coins also have made the news in a big way. A rare 1971 President Dwight D. Eisenhower prototype silver dollar fetched $264,000 at auction Jan. 14.

That’s because so many examples of Roman coins in reasonably good grades exist. Good Roman bronzes go for as little as $20 each, while silver and gold are correspondingly pricier.

In Depth: Most Valuable U.S. Coins The 1804 Silver Dollar is one of four coins worth more than $5 million in good condition. The star-crossed 1933 Double Eagle is second on the list at $8.5 ...

Photo by Rare Coin Wholesalers via Getty Images No. 6: 1794 Silver Dollar, Flowing Hair ($3.2 million) If you think there isn't much to say about coins, think again.

“With coin collecting, you can learn so much history,” she says. “You can get involved with early 1800 stuff, early 1700 stuff … And that’s important.” STORIES COME TO MIND.