You undoubtedly knew raspberries are red, but not that they're multicolored. They come in gold, purple, and black. Black raspberries are smaller than store red raspberries and used for cooking.
Currants and gooseberries were forbidden in the U.S. until 1966. They hosted white pine blister rust, which kills white pines. Some states have limits. Growing these berries may require a permission in those states.
Bananas are berries, but you probably never knew that. A banana is a berry since it comes from a single-ovary blossom. Modern varieties are seedless.