Are pennies worth more than 1 cent?

It depends on a lot of factors. Modern cents are only worth face value, and even wheat cents from the 1940s and 1950s tend to be worth a nickel or so, simply because so many were made.

But if you go back earlier than that, some US cents can be moderately to extremely valuable - for example, a 1914-D cent can be worth hundreds of dollars, and some very old Large Cents can be worth many thousands.

But the bottom line is that unless you know a coin's date, mint mark, and condition it's almost impossible to assign a value sight-unseen.