The World's Largest Catsup Bottle is a famous roadside attraction located in Collinsville, Illinois. Standing at 170 feet tall, it was built in 1949 as a water tower for the Giant Catsup Bottle Company. The structure is shaped like a ketchup bottle and has become a beloved symbol of the town. This unique landmark is listed on the National Register of Historic Places and attracts many visitors each year. The bottle is painted bright red and features a label that reads "Catsup," showcasing its connection to the condiment. It serves as a reminder of the quirky Americana found along U.S. highways.