The
Eye
of
the
Sahara
is
a
colorful
rock
structure
in
Mauritania
,
in
western
Africa
.
When
it
____________________
____________________
from
above
,
the
circular
,
dome
-
like
structure
____________________
like
a
giant
bull's
eye
.
people
once
____________________
that
it
____________________
____________________
by
a
meteor
that
struck
the
earth
many
years
ago
.
However
,
it
____________________
in
fact
____________________
from
uplifted
rock
.
This
rock
____________________
____________________
by
wind
over
many
years
.
The
structure
is
40
kilometers
wide
and
can
____________________
____________________
by
astronauts
from
space
.
