Talking about good use of space ...

The Highline is a very interesting walk you can do. It used to be an above-ground rail but has been converted into a garden space.

One of the interesting things about it was that the plantings had been designed to look like some of the self-sewn areas that had developed, it is much less controlled than other planted areas in New York (Central Park excepted, of course).

There was also an interesting juxtaposition of natural shapes and the man-made, geometric shapes.

And I couldn't resist taking this photo from the walk - another example of using all the space available.