Five monuments were built in Delhi Sultanate and are still there are following-
1- Qutub Minar- Qutub Minar is a victory tower, located in Delhi. It is 73 meters high tower.It was constructed by Gulam dynasty ruler Qutub-ud-din Aibak.
2- Red Fort of Delhi- Red Fort is also known as Lal Qila, located in Delhi. It was built by 5th Mughal emperor Shahjahan. On 15 August 1947, the first Prime Minister of India, Pandt Jawaharlal Nehru raised the Indian National flag.
3- Jama Masjid of Delhi- Jama Masjid is one of the largest mosques in India. It was built by Mughal emperor Shahjahan between 1650 to 1656.
4- India Gate- India Gate is also known as All India War Memorial, located astride the Rajpath of New Delhi. It stands as a memorial 70,000 soldiers of British Indian Army, who died in the first world war between 1914 and 1921.