Plus 15

It is the world's most extensive pedestrian skywalk system, with a total length of 16 kilometres (10 miles) and 86 bridges connecting 130 buildings, as of 2022.

The central core of the system is a series of enclosed shopping centres, and the city's flagship department stores.

New developments were required to connect to the walkway system; in exchange for this, they were offered more floorspace (the "bonus density").

[4] In 1985, graphic designer Lance Wyman created a wayfinding system featuring a person wearing a cowboy hat.

Critics continue to claim the system is detrimental to culture and economic activity at ground level, however proponents argue that its heavy use points to how useful and convenient it is in cold weather.

Facing north, Plus 15 sign and covered walkway linking the TC Energy Tower (formerly TransCanada Tower) (east) and Fifth Avenue Place
Plus 15 network in downtown Calgary
Plus 15 under construction between Centennial Place and the Canterra Tower in 2009
Facing north, the former three level skywalk at The Core Shopping Centre
Facing west, previous skywalk over the C-Train tracks linking the downtown Holt Renfrew department store to the 4th Street Southwest LRT station before its reconstruction