Allegheny Post Office

Allegheny Post Office
U.S. National Register of Historic Places
City of Pittsburgh Historic Structure
Pittsburgh Landmark — PHLF
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Location	Allegheny Center, Pittsburgh, Pennsylvania
Coordinates	40°27′9″N 80°0′26″W / 40.45250°N 80.00722°W / 40.45250; -80.00722Coordinates: 40°27′9″N 80°0′26″W / 40.45250°N 80.00722°W / 40.45250; -80.00722
Built	1897
Architect	Multiple
Architectural style	Late 19th And 20th Century Revivals, Other
NRHP Reference #	71000683
Significant dates
Added to NRHP	July 27, 1971
Designated CPHS	December 26, 1972
Designated PHLF	1971

71000683

Allegheny Post Office, also known as Old North Post Office, The Landmarks Museum, is a building built in 1897 in the Allegheny City area that is now within Pittsburgh, Pennsylvania. It is located in Pittsburgh's North Side.

The building was listed on the National Register of Historic Places in 1971.

In 1983, the post office building became the first home of the Children's Museum of Pittsburgh. The Children's Museum has since expanded to include the neighboring Buhl Planetarium building and a new addition.