America’s rugged landscape and endless horizons seem to call to the inner pioneer of people who want to walk the world’s strangest places. Somehow, the World’s Biggest Ball of Twine in Darwin, Minnesota, also appeals to that exploring spirit. At roughly 13 feet tall, 40 feet around, and weighing 8.7 tons, the ball of twine resembles an enormous African cornrow. It smells like old, clean straw. “This is real twine that farmers were using, and they gave it to them,” said its Thursday volunteer guardian Denise Iverson. “They said when they moved, they thought there would be critters,” she said. “But it’s so dense. There wasn’t nothing when they moved.” Iverson started working at the Twine Ball in 2019. She’s a devout Catholic with an enthusiastic and grandmotherly vibe. “Even my friends, they just laugh,” Iverson said. “I think, ‘I don’t care if you laugh, I love this!’” Made by …