The Red Fort : The Red Fort and the city of Shahjahanabad was constructed by the Emperor Shahjahan in 1639 A.D. The Red Fort was the palace for Mughal Emperor Shah Jahan's new capital, He moved his capital from Agra in a move designed to bring prestige to his reign, and to provide ample opportunity to apply his ambitious building schemes and interests. The Red Fort stands at the eastern edge of Shahjahanabad, and gets its name from the massive wall of red sandstone that defines its four sides. The wall is 1.5 miles (2.5 km) long, and varies in height from 60ft (16m) on the river side to 110 ft (33 m) towards the city. Measurements have shown that the plan was generated using a square grid of 82 m. Construction on the Red Fort began in 1638 and was complete by 1648. However, it is believed that it is the ancient city of Lal Kot which was captured by Shah Jahan since Lal Kot literally means Red (Lal) Fort (Kot). Lal Kot was the capital city of Prithviraj Chauhans in the late 12th century.

India Gate: Situated on the Rajpath in New Delhi, India Gate (originally called the All India War Memorial) is a monument built byEdwin Lutyens to commemorate the Indian soldiers who died in World War I and the Afghan Wars. The foundation stone was laid on 10 February 1921 by the Duke of Connaught. The names of the soldiers who died in these wars are inscribed on the walls. It was completed in 1931. Burning under it since 1971 is the Amar Jawan Jyoti (the flame of the immortal warrior), which marks the Unknown Soldier's Tomb.
Inscribed on top of India Gate in capital letters is the line:
To the dead of the Indian armies who fell honoured in France and Flanders Mesopotamia and Persia East Africa Gallipoli and elsewhere in the near and the far-east and in sacred memory also of those whose names are recorded and who fell in India or the north-west frontier and during the Third Afgan War.
The shrine itself is a black marble cenotaph with a rifle placed on its barrel, crested by a soldier's helmet. Each face of the cenotaph has inscribed in gold the words "Amar Jawan" (Immortal Warrior). This cenotaph is itself placed on an edifice which has on its four corners four flames that are perpetually kept alive.

Jantar Mantar : Jantar Mantar The Yantra Mandir (literally the 'temple of instruments', and often called the Jantar Mantar), is in the modern city of New Delhi, Delhi. It consists of a collection of architectural astronomy instruments, built by Maharaja Jai Singh II of Jaipur (1699-1743), for his own use, from 1724 onwards. The primary purpose of the observatory was to compile astronomical tables, and to predict the times and movements of the sun, moon and planets. Some of these purposes nowadays would be classified as astrology.Jai Singh later had another similar observatory, now known by the same name, built for him at Jaipur.Today the observatory is mainly a tourist attraction, and is significant in the history of astronomy.                Top

Qutub Minar : Qutub Minar is the tallest brick minaret in the world, and an important example of Indo-Islamic Architecture.The Qutub Minar and its monuments are listed as a UNESCO World Heritage Site.
The Qutub Minar is 72.5 meters high (237.8 ft) with 399 steps leading to the top. The tower is now unfortunately once again closed to visitors. This is because in 1998 25 children were crushed inside the tower when an electrical failure inside the tower caused a stampede. Prior to that the tower was also a popular place to commit suicide by jumping. The diameter of the base is 14.3 meters wide while the top floor measures 2.75 meters in diameter. Surrounding the building are many fine examples of Indian artwork from the time it was built in 1193. A second tower was in construction and planned to be taller than the Qutub Minar itself. Its construction ended when it was about forty feet tall. 

Rashtrapati Bhavan - The house that houses the President of India and the house that boasts of having welcomed the most powerful men in history.The Rashtrapati Bhavan was designed by Edwin Lutyens and built in 1931, tobe the central point of the British power in Delhi. Originally called the Viceroy's House, the Rashtrapati Bhavan covers an area of 4.5 acres of land. It has 340 rooms, 37 salons, 74 lobbies and loggias, 18 staircases and 37fountains. The most magnificent room in the Rashtrapati Bhavan is the Durbar Hall, which lies directly beneath the main dome. All important Indian State and Official ceremonies are held here. To the west, is the famous and beautifully landscaped Mughal Gardens, designed after the terraced gardens the Mughals built in Kashmir. The garden is famous as the 'Butterfly Garden'for the numerous butterflies that visit the varied flowers. The garden is open to the public in February.

Jama Masjid : Work on the Jama Masjid mosque was begun in 1650 by the Mughal Emperor Shah Jahan to complement his palace at the Red Fort. More than 5,000 workers toiled for six years to complete the largest mosque in India. Every Friday, the emperor and his retinue would travel in state from the fort to the mosque to attend the congressional prayers.

A fine example of Mughal architecture, the Jama Masjid has three gateways. The largest and highest on the east was reserve exclusively for the emperor. The main courtyard of the emperor. The main courtyard of the mosque is 408 square feet and paved with red stone. In the centre is a large marble tank in which the devout wash before attending prayers.     

Iron Pillar : The Iron pillar stands in memory of King Chandragupta Vikramaditya and has Sanskrit inscriptions on it. The pillar also speaks of India's advancement in the field of metallurgy two thousand years ago.

Humayun's Tomb - Built by the wife of Humayun, Haji Begum in the mid 16th century, and this red sand stone structure is considered to be the predecessor of Taj Mahal. The structure is one of the best example of Mughal Architecture. Humayun's wife is also buried in the red and white sandstone, black and yellow marble tomb. The entry in the complex is free on Fridays.

Safdarjung Tomb - The Safdarjang tomb is besides the of Safdarjang airport. This tomb was built by the Nawab of Avadh for his father. The structure is one of the finest example of architecture of its time and tells a saga of the last remnants of a dying empire.                                                                                                      

Akshardham Mandir :
The construction of this marvelous architectural beauty took nearly 5 years. The main building of the Akshardham Temple at the centre of the complex houses an 11ft high, gilded cult image of Swaminarayan, a 17th century reformer whose followers believe to be an incarnation of God. The building itself is built of Rajasthani pink sandstone and Italian Carrara marble. At 141ft high, it’s impressive presence is felt from afar, and its carved details of flora, fauna, dancers, musicians and Gods covering its surfaces from top to bottom, leave most visitors in awe.

Birla Mandir :
This temple was built by G. D. Birla in 1938. This beautiful temple islocated in the western part of Connaught Place. The temple isdedicated to the goddess of prosperity and good fortune. The temple has well grafted gardens. It is also known as the Lakshmi Narayan Temple.

Lotus Temple :Completed in 1986, the Baha’i temple is set amidst pools and gardens, and adherents of any faith are free to visit the temple and pray or meditate silently according to their own religion. The structure is in lotus shape so it often called the lotus temple. The view of the temple is very spectacular just before dusk when the temple is flood lit.