The monumental structure built as a mausoleum by Shah Jahan is the Taj Mahal, located in Agra, India. Commissioned in 1632, the Taj Mahal was constructed in memory of Shah Jahan's beloved wife, Mumtaz Mahal, who died during childbirth. This iconic structure is renowned for its stunning white marble architecture and intricate decorative elements, combining elements of Persian, Islamic, and Indian architectural styles. The Taj Mahal is not only a symbol of love but also a UNESCO World Heritage Site, attracting millions of visitors each year and standing as a testament to the artistic achievements of the Mughal Empire.