To tourists who view the Los Angeles (above) and Australian structures they may seem to be architectural twins. They remind us of Sally Fields as “The Flying Nun.” Or, if you misbehaved at parochial school, they may resemble the nun who gave you some well-deserved raps on the knuckles.

What’s your take on the super-modern look-alike music hall marvels that seem ready to flap, take off and fly?