The Royal Bank Plaza on the northeast corner of Front and Bay streets was completed in 1979.
The twin towers have more than 14,000 windows set into brushed aluminum frames. The golden-hued glass was manufactured by Canadian Pittsburgh Industries which used 2,500 ounces (71,000 grams) of gold, valued at $70 CDN per pane at the time of installation. At today’s prices, an ounce of gold is worth $1,679.34 CDN and would cost $4,198,350.00 today.
It is said there is more glass in the Royal Bank Plaza than there was in the entire Roman Empire 2000 years ago.