DELUGE n.
Fig.: Anything which overwhelms, or causes great destruction. "The deluge of summer." Lowell. A fiery deluge fed With ever-burning sulphur unconsumed. Milton. As I grub up some quaint old fragment of a [London] street, or a house, or a shop, or tomb or burial ground, which has still survived in the deluge. F. Harrison.…
DEMOLITION n.
The act of overthrowing, pulling down, or destroying a pile or structure; destruction by violence; utter overthrow; -- opposed to construction; as, the demolition of a house, of military works, of a town, or of hopes.