... Constructed underground spaces used to be hermetically sealed, sterile environments. Now there is the possibility of setting up a connection with nature, incorporating the elements of living vegetation, light, water, air. Equally, they can revel in their own distinct ‘subterranean’ atmosphere, chiming with James Turrell’s assertion that ‘we’re made for the light of a cave, and for twilight … When we dim the light down, and the pupil opens, feeling comes out of the eye like touch’. Either way, these new kinds of underground space are not built around utility, but are people-centred, allowing for an expansion of the inhabitable realm of the city.