As of 2019, one out of four UNESCO World Heritage Sites is under threat by climate change, each with few protections against their respective worst case scenarios. Increased humidity, rising sea levels and other climatological factors are newly placing increased pressure of century and millennia-old structures that have been the symbols of permanence throughout known history.
One of the prime examples in Europe is the Piazza San Marco in Venice, Italy, but the website Archinect compiled a list of a couple more notable examples that fall under such threats.
View the full list and read the article at Archinect.