The Chicago Cultural Center, opened in 1897, is a Chicago Landmark building operated by Chicago's Department of Cultural Affairs and Special Events that houses the city's official reception venue where the Mayor of Chicago has welcomed Presidents and royalty, diplomats and community leaders. It is located in the Loop, across Michigan Avenue from Millennium Park. Originally the central library building, it was converted in 1977 to an arts and culture center at the instigation of Commissioner of Cultural Affairs Lois Weisberg. The city's central library is now housed across the Loop in the spacious, postmodern Harold Washington Library Center opened in 1991.