The Japanese Garden at the Chicago Botanic Garden is one of my favorites – partly for its setup. It’s situated on 3 islands, one of which – the Island of Eternal Happiness – you can only view from a distance. (Unless you’re a garden staff member; then you’re allowed to visit Eternal Happiness in order to maintain it.)
At the end of this set of photos is one of a “witch’s broom,” which apparently is a growth that, if removed and planted, can grow into a new tree. Who knew!