Are you a concrete-obsessed billionaire searching for your dream holiday home? You could do a lot worse than check out Concrete Quarterly’s house-themed Winter issue (which I edited). So what’s it going to be? Norman Foster’s luxury apartments in downtown Buenos Aires (pages 4-7)? A modernist retreat apparently carved out of a rocky outcrop in the hills of Maharashtra, with a bath open to the skies (10-11)? Or, for those seeking a third way between luxury holiday and survival weekend, this extremely comfortable cyclone-proof bunker deep in the Queensland jungle (9)? It may look like the home of a Bond villain but the owner’s actually a stamp dealer (the clue’s in the perforated facade). And for the rest of us, there’s the rather more liveable Hill Top House – Japanese-style exposed interiors seamlessly inserted into an Oxford terrace.