The major architectural marvel built in India as a mausoleum is the Taj Mahal. Commissioned by Mughal Emperor Shah Jahan in memory of his beloved wife Mumtaz Mahal, this stunning structure is renowned for its exquisite white marble façade and intricate craftsmanship. The Taj Mahal, located in Agra, combines Persian, Islamic, and Indian architectural styles and is surrounded by beautiful gardens and reflecting pools. It stands as a UNESCO World Heritage site and symbolizes love and devotion, attracting millions of visitors from around the world, making it one of the most famous landmarks in India.