The Taj Mahal is a UNESCO World Heritage Site and a renowned mausoleum in Agra, India, commissioned by Shah Jahan in 1631 for his wife Mumtaz Mahal, blending Mughal architecture with decorative arts. It features symmetrical twin mosques, gardens, and intricate inlay work, with notable inscriptions from the Quran. The monument faces challenges such as pollution and political dynamics, prompting restoration efforts to preserve its cultural significance.