The UBS Trading Floor in Stamford, Connecticut --- the world's largest securities trading floor
"The largest securities trading floor in the world. The 103,000 square-foot operation has a 40 foot arched ceiling freeing it of columns or walls.
The size of three football fields, it is home to 1,400 traders and staff who handle about $1 trillion worth of transactions a day.
It is roughly 227 feet wide by 410 feet long. UBS officials have boasted that a 747 jet could turn around in it"
Photo and caption: oobject.com
Note: UBS may be good at trading, but they aren't too good at measuring and/or multiplying.
227 ft. wide x 410 ft. long = 93,000 sq. ft. (not 103,000 sq. ft.)