On the site of New England Aquarium on Central Wharf, Boston, one of 24 nine-ton concrete columns is hoisted into place. These giant pins will support the glass walls of the 32-foot-high giant tank, focal point of the Aquarium's varied exhibits

On the site of New England Aquarium on Central Wharf, Boston, one of 24 nine-ton concrete columns is hoisted into place. These giant pins will support the glass walls of the 32-foot-high giant tank, focal point of the Aquarium's varied exhibits

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