The Back Bay and Beacon Hill are also home to national and local politicians, famous authors and top business leaders and professionals. Bay Village is one of the smallest neighborhoods in Boston and mostly contains Greek Revival-style row houses. North and east of downtown are the neighborhoods of East Boston and Charlestown. East Boston has a majority of Hispanics, Brazilians, and young professionals, with a remnant of older Italians, and is the site of Logan International Airport. On the north bank of the Charles River is Charlestown; once a predominantly Irish enclave and site of the Bunker Hill Monument, it is now a home for young professionals. West of downtown are the neighborhoods of Fenway Kenmore, Allston, Brighton, Longwood and Mission Hill. Fenway Kenmore borders the campus of Boston University and houses many college students and young professionals and is the location of Fenway Park. Allston and Brighton are populated heavily by students from nearby universities, as well as recent graduates. Mission Hill is an ethnically diverse neighborhood, adjacent to the Longwood area, which is full of world-class medical institutions. South of downtown are the neighborhoods of Roxbury, Jamaica Plain, Dorchester, Mid Dorchester and South Boston. Dorchester, including Mid Dorchester, is Boston's largest neighborhood and predominantly a working class community considered to be Boston's most diverse. Roxbury is populated largely by African Americans, Caribbean Americans and Latinos and is historically the center of Boston's black community. Jamaica Plain is a community of white professionals and Latinos, and includes the larger side of the Arnold Arboretum. South Boston is a predominantly Irish-American neighborhood, which hosts the city's annual St. Patrick's Day parade. South of Roxbury, Jamaica Plain and Dorchester are the neighborhoods of Mattapan, Roslindale, Hyde Park and West Roxbury. Roslindale is known for its small business district and includes the smaller side of the Arnold Arboretum. Roslindale has also recently become a majority-minority neighborhood. Mattapan remains the neighborhood with Boston's highest concentrations of African Americans. Hyde Park and West Roxbury have a distinct suburban feel, while still being a part of the city of Boston. Both neighborhoods have large areas of wooded parks and recreation land. Hyde Park is populated largely by African Americans and Caribbean Americans, whereas West Roxbury is predominantly white, but with rapidly growing African American, Middle Eastern and Latino populations. List of places and squares within neighborhood areas The 23 official neighborhoods in Boston are made