Visit the tallest brick minaret in the world, a UNESCO World Heritage Site, constructed in the early 13th century. The Qutub Minar complex also includes a number of other ancient structures including Quwwat-ul-Islam Mosque and the Iron Pillar.
Humayun's Tomb is a UNESCO World Heritage Site and one of the best-preserved Mughal monuments in Delhi. The tomb is set in beautiful gardens, and the intricate marble inlay work on the walls and domes is stunning.
Feast on delicious paranthas, a fried bread stuffed with a variety of fillings, from the famous street food destination of Paranthe Wali Gali in Old Delhi. There are over 20 different varieties to choose from!
Another UNESCO World Heritage Site, the Red Fort is a stunning example of Mughal architecture. The fort was the residence of the Mughal emperors for almost 200 years, and is a must-see for any visitor to Delhi.
Take a stroll along Rajpath, the ceremonial boulevard of New Delhi, and see the iconic India Gate, a war memorial built in memory of the Indian soldiers who died in World War I.
Visit the spectacular Akshardham Temple, one of the largest Hindu temples in the world. Marvel at the intricate carvings and sculptures, and watch the fascinating water show in the evening.
If you have time, consider visiting the Lotus Temple, a beautiful Bahai House of Worship, or the National Museum, which houses an impressive collection of Indian art and artifacts. A side trip to Agra to see the Taj Mahal is also highly recommended, but would require an additional day.