Humayun's tomb is situated in Delhi, the capital city of India. It was built in 1570. This historic monument was erected by Humayun's queen Hamida Banu Begam (Haji Begam). It is believed that she herself had designed the tomb. It has double-storeyed gateway. High rubble walls enclose a square garden divided into four large squares separated by causeways and water channels. Each square is divided again into smaller squares by pathways, forming a typical Mughal garden called Charbagh. The fountains were worked with simple yet highly developed engineering skills quite common in India during that period. The last Mughal emperor, Bahadur Shah Zafar II had taken refuge in this tomb during the first War of Independence in 1857. Several rulers of the Mughal dynasty lie buried here. Humayun's wife is buried here too. The main sarcophagus stands in the central hall, oriented - in accordance with Muslim practice - on the north-south axis. The structure is built with red sandstone, but white and black marbles have also been used in the borders.