Meet George Hart, geometric genius, mathematician and sculptor, and see his fine works – I think I like the SNARL series the most so far, though “Gonads of the Rich and Famous” gets my gong for naming.
The acceleration of computing speeds has made the rendering of complex fractal geometries a lot easier, as this site demonstrates.
An architectural writer at Skidmore, Owings & Merrill (a what??) maintains this meaty blog about Manhattan and architectural theory and history.