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The Main Concourse of Grand Central Terminal is huge. To be exact, it encompases 275 feet in length, 120 feet in width and 125 feet in height. This area is the busiest part of the terminal, with the most noticeable icon in the whole terminal is the four-faced clock on top of the information booth. This infamous clock is made from brass and casted in Waterbury Connecticut, with its face made out of opalescent glass.
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