Most people call it the Acid Ball, but it's actually a massive piece of Bellingham's industrial history. I love that instead of scrapping it, the city turned it into one of its most recognizable landmarks. Officially named Waypoint, this 32-foot steel sphere is a former acid accumulator from the Georgia-Pacific pulp mill that once occupied Bellingham's waterfront. Built around 1938, the 430,000-pound vessel was part of the mill's digester system, helping regulate pressure as wood chips were cooked into pulp. In 2018, it was moved more than 1,000 feet to Waypoint Park, coated with millions of reflective glass beads, and transformed into a public art installation. At night, it glows with LED lighting, and during special events it's occasionally used as a giant canvas for projected artwork and animations.