This photo provided by MKSK shows some of the 11 pylons that list every player who played a down in an NFL regular or postseason game, in Centennial Plaza under construction in downtown Canton, Ohio. Centennial Plaza, developed with the help of $12 million in funding from the citizens and businesses of Canton, will occupy a two-acre city block formerly known as Market Square. (Courtesy of MKSK/Pro Football Hall of Fame via AP)

This rendering provided by MKSK shows the design planned for the NFL dedicated Centennial Plaza in downtown Canton, Ohio. Centennial Plaza, developed with the help of $12 million in funding from the citizens and businesses of Canton, will occupy a two-acre city block formerly known as Market Square. (Courtesy of MKSK/Pro Football Hall of Fame via AP)

This rendering provided by MKSK shows the design planned for the NFL dedicated Centennial Plaza in downtown Canton, Ohio. Centennial Plaza, developed with the help of $12 million in funding from the citizens and businesses of Canton, will occupy a two-acre city block formerly known as Market Square. (Courtesy of MKSK/Pro Football Hall of Fame via AP)

This rendering provided by MKSK shows the design planned for the NFL dedicated Centennial Plaza in downtown Canton, Ohio. Centennial Plaza, developed with the help of $12 million in funding from the citizens and businesses of Canton, will occupy a two-acre city block formerly known as Market Square. (Courtesy of MKSK/Pro Football Hall of Fame via AP)