Not to miss

Jantar Mantar

Only a short stroll down Sansad Marg from Connaught Place, this collection of curious terracotta-red structures is one of Maharaja Jai Singh II's observatories. The ruler from Jaipur constructed this observatory in 1725, dominated by a huge sundial known as the Prince of Dials. Other instruments plot the course of heavenly bodies and predict eclipses.

Humayun's Tomb

Built in the mid-16th century by the senior wife of the second Mughal emperor, this is the first significant example of Mughal architecture in India. It's also one of the most beautiful buildings in the city and should not be missed. The elements of its design are echoed in the later Taj Mahal.

It comprises a squat building with high arched entrances topped by a bulbous dome and surrounded by formal gardens. The gardens also contain the red-and-white sandstone and black-and-yellow marble tomb of Humayun's wife and, somewhat surprisingly, the tomb of Humayun's barber.

Gandhi National Museum

The National Gandhi Museum has an interesting display of paintings and photos about the man who spearheaded the country's independence movement. Indians affectionately dub Gandhi 'the Father of the Nation'.