I always really loved how Habitat 67 looked, whatever practicality issues aside hah.

I also really love The Interlace in Singapore, but I have no idea how you could be expected to navigate it if you are unfamiliar. I wonder how it is for service providers etc to find units. The layout when you see it from above makes more sense, but only slightly.

https://en.wikipedia.org/wiki/The_Interlace