The Tomb of Humayun is a UNESCO World Heritage Site located in Delhi, India. Built in 1569, it is the first garden tomb on the Indian subcontinent and was commissioned by Humayun's widow, Empress Bega Begum. The tomb is an excellent example of Mughal architecture, featuring a large dome and beautiful gardens. The structure is made of red sandstone and white marble, showcasing intricate carvings and inlay work. The tomb complex also includes several other smaller tombs and monuments, making it a significant historical site that reflects the grandeur of the Mughal Empire.