The Red Fort was the residence of the Mughal emperor of India for nearly 200 years, until 1857. It is located in the centre of Delhi and houses a number of museums. In addition to accommodating the emperors and their households, it was the ceremonial and political centre of Mughal government and the setting for events critically impacting the region. Constructed in 1648 by the fifth Mughal Emperor Shah Jahan as the palace of his fortified capital Shahjahanabad, the Red Fort is named for its massive enclosing walls of red sandstone and is adjacent to the older Salimgarh Fort, built by Islam Shah Suri in 1546. The imperial apartments consist of a row of pavilions, connected by a water channel known as the Stream of Paradise (Nahr-i-Behisht). The fort complex is considered to represent the zenith of Mughal creativity under Shah Jahan and although the palace was planned according to Islamic prototypes, each pavilion contains architectural elements typical of Mughal buildings that reflect a fusion of Timurid and Persian traditions. The Red Fort’s innovative architectural style, including its garden design, influenced later buildings and gardens in Delhi, Rajasthan, Punjab, Kashmir, Braj, Rohilkhand and elsewhere. With the Salimgarh Fort, it was designated a UNESCO World Heritage Site in 2007 as part of the Red Fort Complex.

The Lotus Temple, located in New Delhi, India, is a Bahá'í House of Worship completed in 1986. Notable for its flowerlike shape, it serves as the Mother Temple of the Indian subcontinent and has become a prominent attraction in the city. The Lotus Temple has won numerous architectural awards and been featured in hundreds of newspaper and magazine articles. 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 height of slightly over 40 metres and a capacity of 2,500 people. A 2001 CNN report referred to it as the most visited building in the world.

The India Gate, (originally called the All India War Memorial), is a war memorial located astride the Rajpath, on the eastern edge of the ‘ceremonial axis’ of New Delhi, formerly called Kingsway. India gate is a memorial to 82,000 soldiers of the undivided Indian Army who died in the period 1914–21 in the First World War, in France, Flanders, Mesopotamia, Persia, East Africa, Gallipoli and elsewhere in the Near and the Far East, and the Third Anglo-Afghan War. 13,300 servicemen's names, including some soldiers and officers from the United Kingdom, are inscribed on the gate. The India Gate, even though a war memorial, evokes the architectural style of the triumphal arch like the Arch of Constantine, outside the Colosseum in Rome, and is often compared to the Arc de Triomphe in Paris, and the Gateway of India in Mumbai. It was designed by Sir Edwin Lutyens. In 1971, following the Bangladesh Liberation war, a small simple structure, consisting of a black marble plinth, with reversed rifle, capped by war helmet, bounded by four eternal flames, was built beneath the soaring Memorial Archway. This structure, called Amar Jawan Jyoti, or the Flame of the Immortal Soldier, since 1971 has served as India’s Tomb of the Unknown Soldier.

Akshardham or Swaminarayan Akshardham complex is a Hindu mandir, and a spiritual-cultural campus in New Delhi, India. Also referred to as Delhi Akshardham or Swaminarayan Akshardham, the complex displays millennia of traditional Hindu and Indian culture, spirituality, and architecture. It is a large Hindu temple. Hindu temple after the Akshardham in Gandhinagar both inspired and developed by Pramukh Swami Maharaj, the spiritual head of the Bochasanwasi Shri Akshar Purushottam Swaminarayan Sanstha, whose 3,000 volunteers helped 7,000 artisans construct the temple. The temple, which attracts approximately 70 percent of all tourists who visit Delhi, was officially opened on 6 November 2005 by Dr. A.P.J. Abdul Kalam. It sits near the banks of the Yamuna adjacent to the 2010 Commonwealth Games village in eastern New Delhi. The temple, at the centre of the complex, was built according to the Vastu shastra and Pancharatra shastra. The complex features an Abhisheka Mandap, Sahaj Anand water show, a thematic garden and three exhibitions namely Sahajanand Darshan (Hall of Values), Neelkanth Darshan (an IMAX film on the early life of Swaminarayan as the teenage yogi, Neelkanth), and Sanskruti Darshan (cultural boat ride). According to Swaminarayan Hinduism, the word Akshardham means the abode of God and believed by followers as a temporal home of God on earth