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- Weathering, soot, and biofoulingThe black patina on Cologne Cathedral is due to weathering, soot, and biofouling1. The sandstone reacts with the sulphuric acid in polluted rain, causing the stone to darken over time2. While climate change has damaged the cathedral, the black appearance is primarily a result of these environmental factors3.Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.The black patina has been a characteristic feature of Cologne Cathedral for centuries and is due to weathering, soot and biofouling — and it should stay that way.www.cologne-tourism.com/arts-culture/sights/detail…At night, when it is floodlit, it is even more dramatic. The church wasn’t built with black stone, though, it’s just dirty, thanks to the way that sandstone reacts with the sulphuric acid that is in our polluted rain.theculturetrip.com/europe/germany/articles/8-fascin…Climate change is damaging the cathedral But the deterioration of the stone is not the only threat to the cathedral. For a long time, it was also damaged by the sulphur in the air that clogged the walls and turned them black. That has changed.www.dw.com/en/european-day-of-restoration-prote…
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WEBCologne Cathedral is a High Gothic five-aisled basilica (144.5 m long), with a projecting transept (86.25 m wide) and a tower façade (157.22 m high). The nave is 43.58 m high and the side-aisles 19.80 m.
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WEBNov 16, 2020 · This Roman Catholic Cathedral in Cologne is one of the tallest church buildings in the world, as well as being the world’s tallest twin-spired church. It is the seat of the Archbishop of Cologne, and it has …
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WEBJul 15, 2021 · Despite having been bombed during World War Two raids, Cologne Cathedral has survived and is now a UNESCO World Heritage site, revered for being a remarkable example of a gothic cathedral. …
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WEBWhy is the cathedral in Cologne black? The dark color of the Cologne Cathedral is primarily due to the effects of weathering and pollution on the sandstone from which it is constructed. Over centuries, exposure to the …
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WEBApr 21, 2023 · The old church is not actually a black stone construction. Cologne Cathedral was made using sandstone, and it mixed with polluted rain to become its present color. It requires constant cleaning because …
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