1. The Great Wall of China (China)
The Great Wall of China, one of the world’s most recognizable landmarks, is increasingly vulnerable as urban sprawl and infrastructure projects push ever closer to its ancient stones. Suburban growth near Beijing has led to damage, neglect, and even illegal demolition of some sections. Modern development threatens not just the wall’s structure but its very legacy, as historic stretches are lost to roads and new buildings. Preserving this UNESCO World Heritage site is a pressing challenge as China’s cities continue to expand.
