Personally, I'm a two very distinct opinions about modernist design. While I love the minimalist nature of modernist design (and even own a Le Corbusier Chaise among other modernist trappings), there were many serious mistakes done by architects overuse of concrete, and London itself has plenty of examples of 'Brutalist' architecture.
Trellick Tower has quite the interesting and funny history via its architect as well.
However, the New York Times Magazine is featuring Modernist Architecture in all its glory that's well worth reading. I think it's a nice feature about the paradoxes to this utopian and perhaps somewhat naive period in history.