2. Taj Mahal (India)

The Taj Mahal stands as an enduring symbol of love, yet it’s under constant siege from Agra’s urban pressures. Rising air pollution and traffic congestion have led to the marble’s visible discoloration and accelerated structural wear. Unchecked construction in the surrounding city intensifies these threats, despite ongoing preservation campaigns. The iconic white domes now require frequent cleaning and restoration to combat the effects of dust and emissions. Safeguarding this UNESCO monument is a delicate balance between development and the need to protect India’s architectural jewel.