But I'd like to unpack the initial question a bit more. Because what does it really mean for something to be a symbol of a city? And is there an important distinction between the symbols that resonate with locals on a personal level and the symbols that get exported around the world as a city's brand and identity? Indeed, one of the criteria in most global city rankings is a prominent and recognizable skyline. Icons are important.

Let's consider an example. I agree entirely with Sean Marshall that "New City Hall" is a deeply symbolic building. Built in the early 1960s after decades of work, New City Hall was the outcome of an international design competition. And it was decidedly modern at a time when Toronto really wasn't that modern. Montréal was the biggest and most global city in the country and multiculturalism hadn't yet become a federal mandate. And so New City Hall symbolized our genuine ambitions to becoming something more.

But does the rest of the world care? If you were to ask somebody my question on the streets of Rio de Janeiro or Tokyo, what would they say? What would they remember? The thing about most tall buildings or other city symbols is that they become abstractions. They turn into pictures on social media -- like logos of a company. But maybe that's all we can reasonably ask of the world. Maybe all that really matters is that a symbol has local significance; it's then up to us to export it and tell that story to the rest of the world.

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