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TULSA, OK -- The Atlas Life Building in Tulsa has been added to the National Register of Historic Places, according to the Oklahoma Historical Society.

The National Register is the nation's official list of places significant in our history.

The Atlas Life Building was constructed in 1922.

The Oklahoma Historical Society reports the building's architecture represents the significance of the primary business that occupied it, the Atlas Life Insurance Company.

Constructed when the Classical Revival style was popular between c. 1885 and 1940, the Atlas Life Building is among Tulsa's remaining examples of this architecture, with near intact original features on the exterior and the primary public space on the first floor.

The four-story neon sign and the roof line Atlas sculpture with the world on his shoulders overlooking the street below, have become icons that merged building architecture with building purpose, according to the Oklahoma Historical Society.