Bench, steps & raised bed made of railway sleepers. Fairly plain layout but useful for ideas. Might need anti-slip coating for wet-weather. Like the bench to the right (mostly out of picture).
Landscaping with steps Customise a retaining wall on a sloping site for stepped access that doubles as seating in a terraced garden. - rugged-life.com
Vertical sleeper walls use to screen off end of garden? (even as sculpture, varying heights with gaps)
Great idea for an old trampoline (",)
Welsh Slate Gallery patio with curved sleeper wall