The first thing that came to mind for this challenge was architecture. I do love taking photos of buildings and especially those with interesting shapes like the one below taken from the SkyTower in Auckland. I love a corner shaped building.
Still in New Zealand I photographed a lot of the beautiful art deco buildings in Napier. I loved the colours of the buildings but they look pretty good in black and white too.
Last of my New Zealand trio is this angular building in Wellington also set on a corner.
Finally a couple of things from around the house and garden.