Delhi

Some of the must-visit historical sites in Delhi include India Gate, Red Fort, Humayun's Tomb, Qutub Minar, and the historical sites within Old Delhi like Jama Masjid.

To experience the local culture, explore the bustling markets of Chandni Chowk and Dilli Haat, try the street food, visit local temples and mosques, and consider attending cultural events or performances.

The best time to visit Delhi is during the winter months, from October to March, when the weather is pleasant and ideal for sightseeing. The summers (April to June) can be extremely hot, and the monsoon season (July to September) brings high humidity.