It was later used by Humayun as a library. While descending the stairs of this tower one day in 1556, he slipped, fell and received injuries from which he later died. The Qila-i-Kuhran Mosque, or Mosque of Sher Shah, lies just beyond it and unlike the fort itself, is in a fairly reasonable condition. There's a small archaeological museum just inside the main gate. There are good views of New Delhi from atop the gate.

Humayun's Tomb - Built in the mid 16th century by Haji Begum, senior wife of Humayun, the second Mughal emperor, Humayun's Tomb is an early example of Mughal architecture built in Delhi. A rose petal sandstone mausoleum built in proper Mughal style is a beautiful memorial to the poet king. Octagonal in shape, raised on a plinth, with double domes, high arches, laid in the centre of a large walled enclosure, the monument is an imposing structure.
Qutub Minar - 13 km to the south of Connaught Circus at Lalkote of 8th century Tomor Rajputs, the 72.5 m high Victory Pillar stands as a victory stand of a Muslim King Kutub-ud-din-Aibak in India. At Kila Roy Pithora, on the dilapidated fort of the last Hindu king Prithwiraj, this victory stand was made like throne in Gajni. In 1199 Kutub-ud-Din started its construction and it was completed in 1236 by Iltutmish, the son-in-law of Kutub.

Rajpath, past the imposing India Gate, Parliament House, the President's Residence and would end with a drive through the Diplomatic Enclave.

Red Fort - The red sandstone walls of Lal Qila, the Red Fort, extend for two km and vary in height from 18 metres on the river side to 33 metres on the city side. Shah Jahan started construction of the massive fort in 1638 and it was completed in 1648. Before he could move his capital from Agra to Shahjahanabad in Delhi,he was deposed and imprisoned in Agra Fort by his son Aurangzeb. The Lahore gate is the main gate to the fort, getting its name from the fact that it faces Lahore. It leads to a vaulted arcade, the Chatta Chowk (Covered Bazaar). The shops cater to the tourist trade today, but once they stocked articles for the royal household - silks, jewellery, gold. This arcade was also known as the Meena Bazaar, where ladies of the court shopped on Thursdays. No man was allowed inside the citadel on that day.
Jama Masjid - Jama Masjid The splendid mosque built by Muhammad Ali Shah in the typical Mughal style with two minarets and three domes, lies to the west of the Hussainabad Imambara and is entirely free from pseudo Italian art then in vogue in Lucknow. Mohammad Ali Shah started the construction of this splendid mosque in 1840 but his wife Begum Malika Jahan finally completed it after his death. It is the country's largest mosque, built in 1656, where thousands of Muslims offer prayers. It lies opposite the Red Fort and is surrounded by a large number of shops, which deal in a variety of goods. The great mosque of Old Delhi is both the largest in India and the final architectural extravagance of Shah Jahan with a courtyard capable of holding 25,000 devotees.

Raj Ghat - the memorial site where Mahatma Gandhi was cremated.