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From the Calgary World / Places
400 Third
Formerly known as Canterra Tower, 400 Third is a glass-clad office tower on 3 Avenue SW. It is a quick exterior sight within the downtown skyline.
Why go
The current name resolves a common mismatch between older Calgary references and the building sign. Its glass curtain wall gives the tower a continuous reflective surface that contrasts with heavier masonry neighbours. The useful visit is a look from the street while exploring the office core.
What to look for
Glass curtain walls wrap all sides of the tower.
The building was formerly called Canterra Tower and Devon Tower.
Useful to know
Look at the exterior from 3 Avenue SW; no public sightseeing visit is established.
Your next visit
Estimated · Declared scenario and planning estimates; no live opening, weather, queue or booking service.
Outdoor visit · 30–45 min
World planning estimate; admission, opening, visit duration and access need checking.