[1] The Rainbow Tower houses a carillon—a musical instrument consisting of a baton keyboard that controls a series of bells.

The bell castings for the Rainbow Carillon were begun in 1941 by John Taylor Bellfounders of Loughborough, England, but interrupted by the onset of World War II.

The bells were silenced for renovations from 1998 to 2001 and by 2002,[3] the Niagara Falls Bridge Commission had replaced the resident carillonneur with a fully automated system.

Several Canadians and at least two Americans (Kleinschmidt and Werblow) have served as carillonneurs: The Rainbow Tower was featured in the 1953 Marilyn Monroe thriller Niagara.

Scenes were filmed outside the base of the tower, combined with sound stage footage.