Big Bang in Utah - Key West Bank building demolished by Controlled Demolition Inc.

The Key Bank Tower on 50 S. Main alt Lake City was opened in 1980 and was demolished Baltimore-based Controlled Demolition Inc. on Saturday 18th - to make way for The Church of Jesus Christ of Latter-day Saints' City Creek Center development.

These 2 videos Video 1 Video 2 from the Deseret News show how a building is demolished using controlled explosions - completely unlike WTC 7....er....well

There are also several amateur videos on You Tube start with this one here and another here