A bit of a tangent, but the thing that stood out most to me when I visited that mall was the spiral escalator. Apparently Westfield SF had the first long-term i

A bit of a tangent, but the thing that stood out most to me when I visited that mall was the spiral escalator. Apparently Westfield SF had the first long-term installation of one outside of Asia, and I'd certainly never seen one before. It turns out London Underground experimented with the idea in the early 1900s – https://www.ltmuseum.co.uk/blog/spiral-escalator-engineering-wonder-ahead-its-time https://www.ltmuseum.co.uk/blog/spiral-escalator-engineering... – but it took until the 80s for Mitsubishi Electric to build and install them at scale. Oh, and the second thing that stood out there was the restroom setup. A non-enclosed unisex restroom area with staff managing a line of people and urinals overlooked by said queue. Certainly one of the more interesting ones. I assume to prevent drug taking or people sleeping in there.