The complex is a nexus for Montreal's Underground City, the world's busiest, with indoor access to over 1,600 businesses, numerous subway stations, a suburban transportation terminal, and tunnels extending throughout downtown.

A counter-clockwise rotating beacon on the rooftop lights up at night, illuminating the surrounding sky with up to four white horizontal beams that can be seen as far as 50 kilometres (31 mi) away.

Developer William Zeckendorf offered the club the top floor of the Place Ville Marie tower in exchange for their property, but was turned down.

According to design historian Mark Pimlott, "The most radical aspect of the Place Ville Marie project was that nearly one-half of its 280,000-square-metre area was beneath street level [...] deriving the obvious benefit of being protected from Montréal’s extreme winter and summer climate."

The equivalent of three floors was added late in the project to ensure that this building would not be topped by the neighboring Tour CIBC which was built at the same time.

The second new large corporate tenant was the Aluminum Company of Canada (Alcan) who established in November 1962 occupying 6 floors of the building.

[9] He lost a bet to then Royal Bank President Earle McLaughlin, making payment in full (US$0.10) in an elaborate dime encased in acrylic.

[11] On 12 March 1976 Canada Post issued 'Place Ville Marie and Notre-Dame Church' designed by Jean Mercier & Pierre Mercieron.

The complex is currently owned by Ivanhoé Cambridge, a division of the Caisse de dépôt et placement du Québec (CDP Capital), who bought the building in March 2000 for CA$450 million.