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How much does it cost to bring down a building?
11 July 2015 Last updated at 21:01 BST
A 90-year old hotel in Detroit, Michigan, has been “imploded” as part of construction work on a new hockey arena and entertainment district.
The project to demolish the multi-story Park Avenue Hotel in a controlled explosion cost $898,000 (£578,000) and it took less than 30 seconds for the building to collapse.
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