By the end of the same century "Saints Innocents" was neighbour to the principal Parisan Les Halles marketplace, and already filled to overflowing. To make room for more burials, the long-dead were exhumed and their bones packed into the roofs and walls of "charnier" galleries built to the inside of the cemetery walls. By the end of the 18th century, the central burial ground was a two metre high mound of earth filled with centuries of Parisian dead, disease, famine, wars, plus the remains from the Hôtel-Dieu hospital and the Morgue; other Parisian parishes had their own burial grounds, but the conditions in Les Innocents cemetery were by far the worst.