In this week's comments update, readers are discussing Danish architecture firm BIG's concrete tower in Quito, Ecuador, which is now the city's tallest.
In this week's comments update, readers are discussing SANAA's Sydney Modern in Australia, which is an extension of the Art Gallery of New South Wales.
In this week's comments update, readers are discussing Danish architecture studio BIG's 222-metre-high Telus Sky Tower in Canada and other top stories.