A science museum near Pragati Maidan with hands-on galleries on topics like the human body, energy and space. Indoors, so it is a good break from heat or crowds, and kids of all ages can find something to try.
A railway museum in Chanakyapuri with historic locomotives and carriages set across open grounds, plus indoor galleries and a toy train ride around the site. A favourite for train-loving kids; go early in hot weather.
A planetarium in the grounds of Teen Murti Bhavan in central New Delhi, with dome shows and space exhibits. A compact indoor stop for school-age kids and teens curious about astronomy.
The vast red sandstone Mughal fort in Old Delhi, a UNESCO World Heritage Site, with palaces, gateways and gardens inside its walls. Expect a lot of walking in the open; mornings are easier with children.
The grand garden tomb of the Mughal emperor Humayun in the Nizamuddin area, a UNESCO World Heritage Site that inspired later Mughal buildings. Its gardens and open grounds give kids space to explore between monuments.
A large, leafy city park in central New Delhi with 15th- and 16th-century tombs among lawns, trees and walking paths. A calm place for a stroll or picnic, and an easy outdoor break from busier sights.
Delhi's main zoo, next to Purana Qila, with a wide range of animals spread across large, open grounds. It involves plenty of walking, so cooler mornings work best with children.
A UNESCO-listed site in Mehrauli, south Delhi, around the soaring brick Qutub Minar tower, with ancient ruins and a famous iron pillar. Mostly outdoors, so pair it with water, sun protection and a steady pace.
The India Gate war memorial and the wide ceremonial avenue of Kartavya Path, lined with lawns and water channels. A flexible open-air stop where families can stroll, and it is especially lively in the early evening.
Quirky specialist museum for curious older children.