Baltimore City Landmark is a historic property designation made by the city of Baltimore, Maryland. Nominations are reviewed by the city's Commission for Historical & Architectural Preservation (CHAP) and planning board, and are passed by Baltimore City Council. The landmarks program was created in 1971. CHAP also maintains a list of Historical and Architectural Preservation Districts, separate from its landmarks program. The district program includes 37 unique districts, many of which are also listed on the National Register of Historic Places.