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Scientists reveal the secrets of mysterious ship found under 9/11 ruins

Scientists have found the secrets of the old ship unearthed in 2010 under the ruins of the Twin Towers. First, the large vessel—buried under 22 feet (6.7 meters) of soil and wreckage—was built around the same time the Declaration of Independence was signed. There's more—but there's also one big mystery left unsolved.

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How New York City Built a Massive $3.8 Billion Underground Transit Station in the WTC's Footprints

The original World Trade Center PATH (Port Authority Trans-Hudson) Station, opened in 1971, was destroyed in the 9/11 attacks when the WTC towers collapsed on top of it. Its replacement, the World Trade Center Transportation Hub, is a mega-terminal on the scale of Grand Central Station—under the new WTC complex.