The $3.6 million bronze monument — with sculptures featuring the Katz lunch counter, the 13 children and the waitress who refused to serve them — will be part of the Clara Luper Sit-In Plaza at Robinson and Main, where the drug store once stood. Planning of the monument began in 2018, when Oklahoma City Mayor David Holt tasked a committee with commemorating the historic sit-in that led to desegregation in local businesses.