Delhi rewards a focused itinerary more than almost any capital in India. The Red Fort (Lal Qila) and the neighboring Jama Masjid anchor Old Delhi (Shahjahanabad), and wandering into Chandni Chowk or joining an Old Delhi Food Walk brings that Mughal-era street life into sharp focus. Across town, India Gate and the towering Qutub Minar cover the colonial and Delhi Sultanate chapters, while Humayun's Tomb and Akshardham Temple round out the city's architectural range from medieval to modern. If time allows, a day trip to Agra for the Taj Mahal is well worth the early start. Together these stops turn a short stay into a coherent tour of Delhi's layered history.