Legend has it that the hot dog in a bun was invented at the 1904 St. Louis World's Fair when a sausage vendor borrowed buns from a neighboring baker after running out of gloves for customers to hold hot sausages.
Wild carrots were originally purple, white, or yellow. Orange carrots were selectively bred in Holland in the 17th century, possibly to honor the Dutch royal family.
Kopi Luwak, made from coffee beans eaten and excreted by Asian palm civets, sells for up to $700 per kilogram — making it the world's most expensive coffee.
Cacao beans were so valuable to the Aztec civilization that they were used as currency — workers were paid in cacao, and taxes were collected in beans.