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In 1971, a railway strike stopped circus animals from
reaching New York City by train. So, instead, 19 elephants
walked through the Lincoln Tunnel to get to their show!
THE SHOW
MUST GO ON!
Japan’s Seikan railway tunnel is one of
the world’s deepest underwater tunnels.
At 460 feet (140 m), it’s deeper than the
height of Egypt’s Great Pyramid.
Constructing tunnels
In the engineering world, often includes blasting
building a tunnel is hard rock with explosives
called driving. and digging dirt with
huge machines.
SO, IF YOU’LL DON’T YOU MEAN
JUST LOOK AT THE DRIVING
THE BUILDING PLANS?
PLANS . . .
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