The significance is that the building is bleak and boring but the angles and curves show the unpredictable pattern that nature tends to take, the inane ways that life happens, and the way that the human psyche is so easily shaped by these events.
Furthermore they are a Post-Modernist expressionist type of feature.
Answer:
Sfumato was pioneered by Da Vinci. Sfumato is an Italian term meaning "smoky". It is a painting technique that creates the effect of a soft haze, or a sense of atmosphere. Sfumato was used by various Renaissance artists, including Leonardo da Vinci.
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Any musical instrument which produces sound primarily by way of a vibrating streched membrane