Minneapolis Metrodome stadium demolished
24 February 2014 Last updated at 10:55 GMT
Demolition of the Metrodome Stadium in Minneapolis is continuing.
The concrete ring beam was brought down by controlled explosive charges on Sunday.
The demolition will make way for a new 65,000-seat state-of-the art stadium for the Minnesota Vikings American football team.
The Metrodome was voted the worst stadium in the US by Time magazine in 2012.