After the Meiji Restoration, most of the structures including Tenshu which were in castles and Jinya (regional government office) were disposed of by the private sector or by government as requisitioned military facilities/land and knocked down; however, some Tenshu were conserved as a result of the civic movement and approaches by public officials/military personnel for conservation.
明治維新の後は、城郭や陣屋にあった建物は天守も、民間によって或は、軍事施設・土地としての接収によってほとんどは払い下げ、破却されたが、中には市民運動や公人・軍関係者などの保存の働きかけなどによって保存された天守がある。