Photos: Moheen Reeyad (CC BY-SA 4.0) · Varun Shiv Kapur (CC BY 2.0) · Biswarup Ganguly (CC BY 3.0)
A 16th-century citadel on Mathura Road linked with Humayun and Sher Shah Suri. Excavations here show settlement going back about 3,000 years.
Humayun began the fort in 1538 as part of his city Dinpanah, and Sher Shah Suri strengthened it after defeating him. Its massive walls have three arched gates, and the Bara Darwaza on the west side is still the entrance. Inside are the Qila-i-Kuhna mosque, built by Sher Shah in 1541, and the octagonal Sher Mandal, where Humayun is said to have died after a fall in 1556. ASI digs in several phases since 1954 found Painted Grey Ware and traces of habitation from Mauryan to Mughal times, and the finds are shown in the on-site museum.



Within 1 km of Purana Qila.
India's post-independence war memorial beside India Gate: concentric 'chakra' rings around an eternal flame, with busts of all 21 Param Vir Chakra recipients.
India's flagship museum on Janpath, covering roughly 5,000 years of art and archaeology, from the Harappan period to the decorative arts.
A 90-acre city park off Lodhi Road with 15th–16th century Sayyid and Lodi tombs set among lawns and walking paths.
Lutyens' 42 m war-memorial arch on Kartavya Path, honouring Indian soldiers who died in WWI and the Third Anglo-Afghan War. Its lawns are a popular evening hangout.
A garden tomb from 1754 at the end of Lodhi Road, often described as the last great monumental tomb of Mughal-era Delhi.
Theme park near Sarai Kale Khan with replicas of the Seven Wonders of the World built from scrap metal; most atmospheric when lit at night.
Former Birla House, where Mahatma Gandhi spent his last 144 days and was assassinated in 1948. Now a free memorial museum.
Museum complex inside the President's Estate covering Rashtrapati Bhavan's history and India's Presidents. Visits are by pre-booked time slot only.
The vast ruined stone fort of Ghiyasuddin Tughlaq, built in the 1320s and soon abandoned. A causeway links it to his tomb across the road.
A 72.5 m fluted tower begun in 1199, standing in a UNESCO-listed complex in Mehrauli. The complex also holds the Iron Pillar and the Alai Darwaza.
A four-tier Lodi-era stepwell from 1506 inside Mehrauli Archaeological Park, reopened in 2025 after ASI and World Monuments Fund restoration.
Free museum at Palam Air Force Station with historic military aircraft, weapons, uniforms and photographs tracing the history of the Indian Air Force.
Themed 20-acre park in Said-ul-Ajaib with sculptures, water features, flower beds and rocky terrain designed to engage all five senses.
A 200-acre wooded heritage park beside the Qutb complex with about 100 monuments, including Balban's tomb, Jamali Kamali and Rajon ki Baoli.
minaret in the Mehrauli area of Delhi, India
mosque gateway in Delhi, India