What are some of the popular monuments in India?
Some of the popular monuments in India are:

Taj Mahal : The Taj Mahal is a white marble mausoleum commissioned by Shah Jahan, the fifth Mughal Emperor, in 1631. It was built in memory of, and to house the tomb of his wife, Mumtaz Mahal. It is located on the right bank of the Yamuna River in a vast Mughal garden that encompasses nearly 17 hectares, in the Agra District in Uttar Pradesh.

Qutab Minar : The Qutab Minar is a 72.5m tall red sandstone tower located in the south of Delhi. The Minar is surrounded by a complex of gardens, mosques and other buildings like one of the Ashoka pillars.