Amazing Underground Tunnel Beneath Niagara Falls. Imagine a tunnel more than ten stores underground, a hundred years old, brick lined, wet, and completely inaccessible save by descending through a narrow slit in its ceiling thirty feet above the floor, and then returning up the same rope you came down.
Amazing Underground Tunnel Beneath Niagara Falls
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Amazing Underground Tunnel Beneath Niagara Falls. Imagine a tunnel more than ten stores underground, a hundred years old, brick lined, wet, and completely inaccessible save by descending through a narrow slit in its ceiling thirty feet above the floor, and then returning up the same rope you came down.
