Images of submissions for the Chicago Tribune Tower competition of 1922 and "Late Entries to the Chicago Tribune Tower competition," organized by Stanley Tigerman in 1980. This collection accompanies an article on the ongoing significance of the Chicago Tribune Tower published on the Biennial blog: http://chicagoarchitecturebiennial.org/blog/how-the-tribune-tower-competition-changed-architecture-forever-and-why-its-worth-revisiting/