 The building was abandoned in 1962 and acquired by the Young Men 's Christian Association ( YMCA ) in 1964 . The YMCA has an adjacent structure and used the building as an ante @-@ space until 1990 . Currently , the building is used as offices . The Bristol Customshouse and Post Office is historically significant as it is an example of the Italian palazzo mode of architecture . The building was added to the National Register of Historic Places in 1972 . 
