Often called the “precursor to the Taj Mahal” because of its pioneering garden-tomb design, Humayun’s Tomb is one of Delhi’s most iconic Mughal monuments, built in 1565 by Empress Bega Begum (Humayun’s widow). It was the first grand Mughal tomb in India and set the template for later masterpieces. Visiting it offers both a historical journey and a peaceful retreat in the heart of Delhi. (A small fee can be taken for video.)