Höweler + Yoon squeezed high-design landscape elements, like a fountain and built-in seating, into a small 15-by-13-foot space.  Photo 1 of 11 in Secret Garden

Secret Garden

1 of 11

Höweler + Yoon squeezed high-design landscape elements, like a fountain and built-in seating, into a small 15-by-13-foot space.