premise: The National Australia Bank is a heritage-listed bank building at 61 Churchill Street, Childers, Bundaberg Region, Queensland, Australia. It was designed by Hubert George Octavius Thomas and built  1900 . It is also known as Bank of Northern Queensland, Bank of Queensland, and National Bank of Australasia. It was added to the Queensland Heritage Register on 21 October 1992.
hypothesis: The structure has celebrated its centennial.
reason: celebrated centennial = over 100 years old