From the banks, our boat must have looked a bit like some floating cubist sculpture, its white angular structure scored by floor-to-ceiling windows striped with balcony railings, its monochromatic figure floating in a backdrop of clear blue sky.

BBC: Safari by water in southern Africa

Floating wood stairs, suspended by stainless-steel rods, lead to a second floor, where a sparsely furnished living room and media room overlook the dining room below.

WSJ: A Bicyclists' House Built for Two