Governor Nathan Deal stands with 5-year-old Children's Healthcare of Atlanta patient Devin Simmons as they await the countdown to implosion of the Georgia Archives building

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Governor Nathan Deal stands with 5-year-old Children's Healthcare of Atlanta patient Devin Simmons as they await the countdown to implosion of the Georgia Archives building

Several hundred people lined up along rooftops, parking decks and surface streets to watch this morning's controlled implosion of the Georgia Archives Building.

Built in 1965, the "White Ice Cube" across from the Capitol has been empty since 2003 after engineers determined the building was sinking.

Governor Nathan Deal and 5-year-old Devin Simmons, a patient at Children's Healthcare of Atlanta, pressed the plunger just after 7:00 A.M.

Several sirens warning the community went off starting at 4:00 A.M., and police officers completely shut down access to I-20 and the Downtown Connector during the implosion of the 14 story building.

Deal says that while the archives have long been moved (to a new facility near Morrow), the building has brought a huge windfall to the state's growing film industry.

It's generated nearly $1.5 billion in income as a production set, serving as the backdrop for movies ranging from Anchorman 2 to Marvel's Ant-Man.

In its place, plans are underway to build the state's most expensive building to date – a $100 million judicial complex that would house the state courts.

WATCH: Georgia Archive Building Implosion