Tree House at Post Ranch Inn, USA
A stay among the branches may not mesh with the Californian beach holiday you had in mind but these private, triangular tree houses at Big Sur are worth dragging yourself away from the sand. Set among the firs, each room comes stocked with walking sticks and binoculars to allow you to better explore your new habitat, as well as a fireplace and skylight for watching the stars from the comfort of the king-sized bed.