Meaning of sound-and-light show

sound'-and-light' show"

Pronunciation: [key]
  1. a nighttime spectacle or performance, at which a building, historic site, etc., is illuminated and the historic significance is imparted to spectators by means of narration, sound effects, and music.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.