In message .com, MIG
writes

But where's that shelter and its pillars?

The canopy is above the two elderly people - the dark brown bit is the
inside of the canopy, behind the couple, while the white bit above that
is the side of the canopy facing the photographer. The pillars would be
immediately to the left and right of the image, just off camera
(although it may be that on the left side the canopy attaches to the
station building - it certainly does at some point).

What's that at the top that looks like a bridge? And why is it just
blank white above it?

As above - its just the canopy.

The two shots look different because of the foreshortening effect - this
is very pronounced in the shot with the train, because it is almost head
on. This makes the pillars look much closer than they really are.

The perspective effect can be seen by comparing the wall in the two
photos. In the train photo it is fairly clear that the concrete lower
half is surmounted by a handrail - there is a walkway there, with a
brickwall behind it. In the elderly-couple photo, there is no sense of
distance perspective - it looks more as if the brick wall is built
directly on top of the concrete portion.

In addition to the points mentioned by Neill, look at the long pipe
behind the couple, that gently slopes up from left to right, and then
disappears at the right-most trainstop. This is the same pipe that you
can see sloping up (and then dropping down) to the left of the train in
the other photo.
--
Paul Terry