The Sackler building was originally intended to include a 18-foot (5.5 m) wide by 150-foot (46 m) long "connector" or bridge to the second floor of the original Fogg Museum building located on the other side of Broadway, a major Cambridge thoroughfare. The massive addition was planned to house two galleries, a lounge, and a completely-enclosed connection between the buildings, accessible to visitors and museum staff.[7] The suspended structure was to include a large oculus window high above the middle of the street, at the level of the large square opening still visible on the front of the Sackler building.[34]