Humayun's Tomb is a UNESCO World Heritage Site and is a must-visit for history buffs. It is the tomb of Mughal Emperor Humayun and is a great example of Mughal architecture. The complex also houses other buildings such as Isa Khan's Tomb and Arab Sarai. The best time to visit is during the early morning or late afternoon to avoid the crowds and enjoy the magnificent architecture and gardens.
Qutub Minar is a towering structure and is one of the most famous landmarks in Delhi. It is a UNESCO World Heritage Site and has a height of 73 meters. The complex also houses the Iron Pillar which is made of pure iron and dates back to the 4th century. It is an engineering marvel as it has not rusted over the years. The complex also has several other buildings such as the Quwwat-ul-Islam Mosque and the Alai Darwaza.
The Red Fort is a magnificent structure and is a UNESCO World Heritage Site. It was built by the Mughal Emperor Shah Jahan in the 17th century and used to be the residence of the Mughal Emperors. It is a great example of Mughal architecture and has several buildings such as the Diwan-i-Aam, Diwan-i-Khas, and the Moti Masjid. The complex also has a light and sound show in the evening which is a must-see.