great machine tool for demolishing buildings. an excavator demolishes a multi-storey building with a chisel tool. technique

accident architecture armature background broken building buildings bulldozer caterpillar chisel city collapse concrete damage danger debris demolish demolished demolishes demolishing demolition destroy destroyed destruction disaster dismantling dust equipment excavator flinders great heavy home house industrial industry iron machine machinery multistorey rubble ruin site stone structure technique technology tool tractor urban wall wire work wreck