9. Warsaw, Poland
Warsaw endured repeated bombings during World War II, most severely during the 1939 siege and the 1944 Uprising. By January 1945, between 85% and 90% of the city’s buildings had been completely destroyed. This devastation included the loss of 923 historical buildings, 25 churches, 14 libraries, and numerous cultural monuments. The post-war reconstruction, driven by the resilience of its citizens, restored the Old Town and other historic areas, earning Warsaw a place on the UNESCO World Heritage List in 1980 (whc.unesco.org).
