In the morning, visit the Qutub Minar, the tallest brick minaret in the world. Built in the 12th century, this UNESCO World Heritage Site is surrounded by lush gardens and other historical ruins. Afternoon visits can be hot, but the shade of the minaret and the nearby Quwwat-ul-Islam Mosque offers some relief. In the evening, explore the nearby Mehrauli Archaeological Park, which has over 100 historical monuments to discover.
In the morning, head to the Red Fort, another UNESCO World Heritage Site. The fort was the main residence of the emperors of the Mughal Dynasty for 200 years and is a stunning example of Mughal architecture. In the afternoon, visit the nearby Jama Masjid, one of the largest mosques in India. Climb the minaret for a panoramic view of Delhi. In the evening, take a stroll through Chandni Chowk, a colourful and vibrant market that has been around for centuries.
If you have extra time, consider visiting Humayun's Tomb, Lotus Temple, and India Gate. Take a side trip to Agra to see the iconic Taj Mahal. To maximize your fun, try the street food in Old Delhi, especially the famous parathas and chaat. Lastly, keep in mind that June is a hot and humid month in Delhi, so be sure to stay hydrated and wear sunscreen and comfortable clothing.