The Earth's End
Date: 1993 - 1999
Where does the earth end?
Right beneath your feet! Really, the only meaning to "end" on
the earth is the boundary between the inside (underground)
and the outside (into the atmosphere and space). Other than that,
the earth is pretty much spherical, so there isn't any place
on earth that doesn't look pretty much like every other place,
as far as being able to walk off in any direction without
leaving the planet.
Actually, there's another boundary, where the earth's influence
on the neighboring region of space ends (also the atmosphere
"ends" in a sense a few hundred miles away) - this really extends
for hundreds of thousands or millions of miles though.
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Update: June 2012