1979 – Royal Bank Plaza South, Toronto, Ontario

Architect: WZMH Architects

royal_bank_plaza_south_lge

The two Royal Bank Plaza towers are connected by a 39-meter (130 foot) tall glass Banking Hall. All 14,000 windows of the towers are coated with a layer of 24-karat gold. Not only does this give the buildings a spectacular appearance, it is designed to reduce heating bills as gold is an excellent insulator.