Venice, often referred to as the "Floating City," is not literally floating on water but was built upon wooden platforms supported by wooden stakes driven into the waterlogged ground. The city is situated on a group of 118 small islands separated by canals and linked by bridges. The buildings in Venice were constructed using long wooden piles that were driven deep into the ground, through the soft silt and dirt, to a layer of hard clay that could support the weight of the structures above. Oak or larch, which are very resistant to water, was used for the piles to ensure their longevity.
The wooden piles were placed as closely together as the soil would allow, and the spaces between them were filled with rocks and stones to prevent the silt from rising during the next piling. This process created a solid base for the structures above and protected the wooden piles from the erosive action of the seawater. The lower portions of the buildings, particularly the water-facing facades, were often faced with a dense type of limestone called Istrian stone to further protect the structures from the corrosive effects of the salty lagoon water.
This unique construction method has allowed Venice to withstand the test of time and remain standing for centuries, despite being built in a challenging environment. https://video.twimg.com/amplify_video/1793356038403407872/vid/avc1/360x196/io6656tP6ZL7_VkU.mp4?tag=14