One of the great things about investing in rare coins is that they almost always go up in value. When something is rare it stays rare -- no matter the year or economy. That rarity pretty much guarantees it will continue to rise in price, as long as people continue to be willing to pay.

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If you're interested in collectible coins -- and have a decent amount of money to spend -- here are six rare coins that should soar in value by the end of the decade.

With America's 250th anniversary coming in 2026, you can expect to see renewed interest in the bicentennial quarters that were issued in 1976 for the 200th birthday. The most valuable of these coins was a 1976-S Bicentennial Silver Quarter with a very high grade that sold for $19,200.

The value in these coins comes from their 40% silver content. Most bicentennial quarters were composed of multiple metals such as nickel, copper and zinc.

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This is a prized coin among collectors that should continue to fetch ever-higher prices during the coming years. The "VDB" stands for Victor David Brenner, the artist who designed the Lincoln cent. It was introduced in 1909 to mark the 100th anniversary of Abraham Lincoln's birth, according to Gainesville Coins.

Of the roughly 28 million 1909 VDB Lincoln Wheat pennies produced, fewer than 60,000 are believed to be around now. The highest sales price for this coin was in the six figures, but that was a very rare specimen in mint condition.

Here's a case of an error leading to a very high value. Most pennies minted since mid-1982 are struck on planchets made up of a solid zinc core with only a trace of copper. But in 1983, some were mistakenly struck on a bronze planchet left over from 1982 or earlier. Only those with extremely high grades will fetch the highest prices, but you can still get thousands of dollars for those in slightly less pristine condition.

As with most error coins, this one is expected to keep rising in value in coming years.

Here's another famous coin with an iconic image that is prized by collectors. Because of "some overzealous polishing" on a damaged reverse die at the Denver Mint, the right front leg of the bison in this specimen is completely removed from the surface of the die, according to Gainesville Coins.