From The Vault: Sander Hall implosion brought 27-story University of Cincinnati dorm to its knees

Sander Hall was the tallest building in the U.S. to be imploded and the second tallest in the world, officials said. By some accounts, blowing up Sander Hall was the best thing that happened to it.  The University of Cincinnati dorm At the time, Sander Hall was the tallest building in the U.S. to be imploded and the second tallest in the world when it crumbled in a huge cloud of smoke and dust on June 23, 1991.