Ten Japanese cherry trees, grown over 60 years to make a study retreat on the university grounds of Politecnico di Milan - one to rival the built-environment. It's been devised by Swedish architecture firm visiondivision to explore the impact of architecture on nature, and vice versa. The process of getting the trees to form that shape is fascinating - see more photos, diagrams and info here. Oh, and it's called The Patient Gardener. Perfect. HF.
PS - spied, once again, via Yellowtrace's tweetstream.