The World Exchange Plaza is an office and retail complex in Downtown Ottawa, Ontario, Canada. It covers an entire city block between Metcalfe and O'Connor, south of Queen, north of Albert Street.
The first phase of the project was completed in 1991. The twenty-story building was unusual in Ottawa for its visual flair. The eastern side was marked by a large plaza modeled after the Roman Colosseum. The building opened in the middle of a deep recession and initially had trouble being filled. The 1990s boom solved this and work began on a second tower, which was completed in 2001. This second tower greatly increased the available office space.
Wikipedia https://en.wikipedia.org/wiki/World_Exchange_Plaza
Coordinates 45°25'17.225" N -75°41'51.942" E