One of the most grand apartment hotels in Boston, The Charlesgate, serves as one of many architectural anchors for the Back Bay neighborhood from Kenmore Square. The apartment hotel was constructed in 1891 and so named after the Charlesgate Park which was created by landscape architect Frederick Law Olmsted as part of the glorious Emerald Necklace park system. The Back Bay Fens was the first park designed by Olmsted for the City of Boston. Creating the Back Bay Fens was as much a sanitary as an aesthetic project, because the water was heavily polluted and often stagnant; Olmsted envisioned Charlesgate as the meeting point of the Back Bay Fens with the Charles River. The apartment hotel was actually designed and was financed by the architect, John Pickering Putnam, and members of his family. The basement and first story are constructed of Indiana limestone with the remainder of brick, with limestone trimmings. A picturesque effect is obtained by grouping the bays in pairs, and surmounting each pair with gables in the Queen Anne style, and by relieving these features against a high roof of green slate. The building originally featured 30 apartments and has since been reconfigured into over 50. The architectural landmark is one of the best statement-pieces in the neighborhood, and shows that apartment design can be done very very well!