This
image
was
computer
generated
by
artists
and
historians:
it
is
part
of
a
virtual
restoration
of
the
House
of
the
Poet
in
Pompeii.
Cave
canem
means
beware
of
the
dog.
The
image
on
the
next
page,
also
computer
generated,
is
the
atrium,
the
central
room
that
has
part
of
the
roof
open,
with
a
pool
below
to
collect
rain.
From
there,
rainwater
travels
through
pipes
leading
to
tanks.
Around
the
atrium
are
the
doors
to
other
rooms.
Link:
https://www.youtube.com/watch?v=R42ykXaQd94