Red Fort
Emperor Shah Jahan built Delhi's most magnificent monument, the Red Fort. In 1638 Shah Jahan shifted the Mughal Empire's capital from Agra to Delhi. A new royal palace known as Red Fort or Red Fort Delhi (Lal Qila) was constructed. It was begun in 1639 and completed in 1648. The name Red Fort comes from the massive red sandstone walls that surround it.

The fort is octagonal in shape, like most Islamic buildings in India. The north of the fort is connected to the smaller Salimgarh fort. The Red Fort is an intimidating structure. It measures 900m by 550m, with its rampart walls covering a perimeter of 2.41km. It towers at a height of 33.5m. On the outside, you can still see the moat that was originally connected with the Yamuna River.

Jama Masjid
Constructed by Shah Jahan in the 17th century A.D, Jama Masjid, near the Red Fort is the biggest mosque in India. The Jama Masjid is constructed on a high platform with three onion shaped domes adorned with black stripes. It has four minarets in four corners. Its courtyard has a reservoir of water in the center. This courtyard can gather as many as 10,000 people at a time. This mosque is constructed in red sandstone with inlaid white marble. Its construction began in 1644 A.D. and was completed in 1658 A.D. In the absence of royal patronage, art and architecture did not flourish, after the reign of Shah Jahan.

Qutub Minar
Built in the early 13th century a few kilometres south of Delhi, the red sandstone tower of Qutb Minar is 72.5 m high, tapering from 2.75 m in diameter at its peak to 14.32 m at its base, and alternating angular and rounded flutings. The surrounding archaeological area contains funerary buildings, notably the magnificent Alai-Darwaza Gate, the masterpiece of Indo-Muslim art (built in 1311), and two mosques, including the Quwwatu'l-Islam, the oldest in northern India, built of materials reused from some 20 Brahman temples.

Akshardham Temple
Swaminarayan Akshardham in New Delhi epitomises 10,000 years of Indian culture in all its breathtaking grandeur, beauty, wisdom and bliss. It brilliantly showcases the essence of India’s ancient architecture, traditions and timeless spiritual messages. The Akshardham experience is an enlightening journey through India’s glorious art, values and contributions for the progress, happiness and harmony of mankind. The grand, ancient-styled Swaminarayan Akshardham complex was built in only five years through the blessings of HDH Pramukh Swami Maharaj of the Bochasanwasi Shri Akshar Purushottam Swaminarayan Sanstha (BAPS).

Bahai Temple
The Bahá'í House of Worship in Delhi, India, popularly known as the Lotus Temple, is a Bahá'í House of Worship and also a prominent attraction in Delhi. It was completed in 1986 and serves as the Mother Temple of the Indian subcontinent. It has won numerous architectural awards and been featured in hundreds of newspaper and magazine articles.

Inspired by the lotus flower, its design is composed of 27 free-standing marble clad "petals" arranged in clusters of three to form nine sides. The architect was an Iranian named Fariborz Sahba. The major part of the funds needed to buy this land was donated by Ardishír Rustampúr of Hyderabad, who gave his entire life savings for this purpose in 1953.

Jantar Mantar
A unique structure raised in 1724, now lies in the heart of Delhi's commercial centre near Connaught place. This is the Jantar Mantar, one of several astronomical observatories raised by Maharaja Jai Singh II of Jaipur. The various abstract structures within the Jantar Mantar are, in fact, instruments that were used for keeping track of celestial bodies. Yet, Jantar Mantar is not only a timekeeper of celestial bodies, it also tells a lot about the technological achievements under the Rajput kings and their attempt to resolve the mysteries regarding astronomy. The Jantar Mantar of Delhi is only one of the five observatories built by Sawai Jai Singh II, the other four being located at Jaipur, Varanasi, Ujjain and Mathura.