An insightful documentary the BBC put about Saudi Kingdom:
    1. Venice was built on wooden piles – True. The city is constructed on  millions of wooden piles driven into the clay and sand beneath the  lagoon. Alder wood, known for its water resistance, was primarily used,  along with oak and larch.   2. The wooden piles have petrified over time – Partially true. The  piles haven’t literally turned into stone (petrification), but they have  become extremely hard. This is because they are submerged in  oxygen-poor water, which prevents decay and allows minerals from the  water to gradually reinforce the wood.  3. St. Mark’s Campanile stands on 100,000 piles – False. The bell tower is supported by about 10,000 wooden piles, not 100,000.   4. Basilica della Salute required over a million trunks – Likely an  exaggeration. The basilica does rest on thousands of piles, but claims  of a million are probably inflated.   5. Piles are driven up to three meters deep and spaced half a meter  apart – Generally accurate. The depth and spacing vary, but...
 
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