[ By SA Rogers in Destinations & Sights& Travel. ]
Disused subterranean spaces like former mines, quarries, tunnels, bunkers and catacombs can offer just the right combination of spaciousness, moodiness, natural drama and a sense of gravity to house museums and other places of learning. Often making use of raw, rocky walls, cavernous proportions and the temperature-regulating insulation of the earth, these underground museums give us opportunities to explore spaces that are typically closed to the public.