ey are only sentinels.

"After you pass through the gateway, you keep on in the same direction,
without turning to the right hand or to the left, just as if you were
going across the garden. You go on in this way till you get to the
middle alley, which is a very wide alley, that runs up and down the
middle of the garden. This alley is called the Grand Alley, and it is a
very grand alley indeed. It is as broad as a very wide street, and it is
nearly two miles long.[A] It begins at the palace of the Tuileries, in
the middle of the city, and extends through the whole length of the
gardens of the Tuileries; and then, passing out through great gates at
the foot of the garden, it extends through the Elysian Fields, away out
to the great Triumphal Arch of the Star, which you saw from the cars
when you were coming into the city.

"Now, when you get into the Grand Alley, which you will know by its
being the broadest, and smoothest, and most splendid grand walk that you
ever saw, you must stop for a minute, and look both ways. I'll tell you
what you will see. First, if you turn to the left, that is, toward the
east, you will see at the end of the alley, in that direction, a long
range of splendid buildings, extending across from side to side. In the
opposite direction, at the top of a long, gentle slope, a mile and a
half away, you will see the grand Triumphal Arch. That is at the barrier
of the city. The view is not entirely open, however, out to the arch.
About midway, in the centre of the Grand Alley, is a tall obelisk,
standing on a high pedestal, and farther along there are one or two
fountains. Still you can see the Triumphal Arch very plainly, it is so
large, and it stands so high.

"Now, the Grand Alley is nearly two miles long, and, wherever you may be
in it, you can always see the palace at one end, the arch at the other,
and the Egyptian obelisk in the middle. So that, as long as you walk
back and forth in this alley, keeping these things in sight, you cannot
lose your way.

"Only I ought to say," continued Mr. Holiday, "that the garden does not
extend all the way to the barrier. The garden extends, perhaps, half a
mile. Near the bottom of it is a great basin or pond of water, with a
stone margin to it all around. You will have to go round this basin, for
the centre of it is exactly in the middle of the Grand Alley. Then you
come very soon to the end of the garden, and you will go out through
great iron gates, but