Iroquois Theatre

A newly-opened theatre in Chicago seating 1,724 that was the site of the worst fire in US history on December 30, 1903. Approximately 602 lives were lost. Lessons learned in the aftermath of this tragedy are directly responsible for many of the life safety regulations and procedures in place today.

For more, see
602 Lives - The Iroquois Theater Fire of 1903 | Journey To Firefighter
Eastland Memorial Society - Iroquois Theater Fire
WEIRD CHICAGO: IROQUOIS THEATER FIRE
The Iroquois Theater Disaster
Cinema Treasures | Colonial Theatre

More sensationalized journalism in this video.
YouTube - Ghost of the Iroquois Theatre Fire
The Iroquois site was completely razed in 1924, whereupon the Oriental Theatre, today part of the Ford Center for Performing Arts, was built.