The tourists are almost all smiling. Some wrap arms around companions or young children; others stand tall and give a thumbs-up. Members of an orchestra pose stiffly in matching blue neckties; a dozen retirees in white socks and tennis shoes beam for the camera. Most pose in front of a five-story wall of neatly stacked aluminum tubes. One Facebook poster jokes that it looks like the world's largest wine rack. Another post prompts a friend to ask, "What is this, Wall Street?"
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