The Chandni Chowk is one of the oldest and busiest markets in Old Delhi, India. Chandni Chowk is located close to Old Delhi Railway Station. The Red Fort monument is located within the market. It was built in the 17th century by Mughal Emperor of India Shah Jahan and designed by his daughter Jahanara. The market was once divided by canals to reflect moonlight and remains one of India's largest wholesale markets.

National Monument of INDIA

Biggest president palace in the world

Agrasen ki Baoli, designated a protected monument by the Archaeological Survey of India under the Ancient Monuments and Archaeological Sites and Remains Act of 1958, is a 60-meter long and 15-meter wide historical step well on Hailey Road near Connaught Place, Jantar Mantar in New Delhi, India. Although there are no known historical records to prove who built Agrasen ki Baoli, it is believed that it was originally built by the legendary king Agrasen, and rebuilt in the 14th century by the Agrawal community which traces its origin to Maharaja Agrasen. It is a popular tourist destination and hangout in New Delhi.. The Baoli is open for public viewing seven days a week from 9 am to 5.30pm. The entry is free for all. Photography charges are also nil.

Humayun's tomb is the tomb of the Mughal Emperor Humayun in Delhi, India. The tomb was commissioned by Humayun's first wife and chief consort, Empress Bega Begum, in 1569-70, and designed by Mirak Mirza Ghiyas and his son, Sayyid Muhammad, Persian architects chosen by her. It was the first garden-tomb on the Indian subcontinent, and is located in Nizamuddin East, Delhi, India, close to the Dina-panah Citadel, also known as Purana Qila, that Humayun founded in 1533. It was also the first structure to use red sandstone at such a scale. The tomb was declared a UNESCO World Heritage Site in 1993, and since then has undergone extensive restoration work, which is complete. Besides the main tomb enclosure of Humayun, several smaller monuments dot the pathway leading up to it, from the main entrance in the West, including one that even pre-dates the main tomb itself, by twenty years; it is the tomb complex of Isa Khan Niyazi, an Afghan noble in Sher Shah Suri's court of the Suri dynasty, who fought against the Mughals, constructed in 1547 CE.

The Lotus Temple, located in Delhi, India, is a Bahá'í House of Worship that was dedicated in December 1986, costing $10 million. Notable for its flowerlike shape, it has become a prominent attraction in the city. Like all Bahá'í Houses of Worship, the Lotus Temple is open to all, regardless of religion or any other qualification. The building is composed of 27 free-standing marble-clad "petals" arranged in clusters of three to form nine sides, with nine doors opening onto a central hall with a height of slightly over 40 metres and a capacity of 2,500 people. The Lotus Temple has won numerous architectural awards and has been featured in many newspaper and magazine articles. A 2001 CNN report referred to it as the most visited building in the world.

The Qutub Minar, also spelled as Qutab Minar, or Qutb Minar, is the tallest minaret in the world made up of bricks. The minaret forms a part of the Qutab complex, a UNESCO World Heritage Site in the Mehrauli area of Delhi, India. Qutub Minar is a 73-metre tall tapering tower of five storeys, with a 14.3 metres base diameter, reducing to 2.7 metres at the top of the peak. It contains a spiral staircase of 379 steps. Its design is thought to have been based on the Minaret of Jam, in western Afghanistan.