Humayun's Tomb was built by the Persian architect, Mirak Mirza Ghiyas for the principal wife of Humayun. The similarities in Humayun's Tomb, not only in it's use, but directly in contrast to the architecture of the overall space is very similar to the Taj Mahal, because it is it's prototype. Red sandstone, vast garden's divided by axis', and the buildings foundations on the Yamuna River are only a few similarities of their outward appearances. They both are massive tombs built around loved ones with chambers within chambers on it's interiors and exteriors. Both tombs are directly below the domes that stretch toward the sky. Humayun's Tomb may be the inspiration for the Taj Mahal, but the embellishing on the inside of the Taj Mahal scream rendition. The Taj Mahal is a marble and red sandstone building with over forty different types of precious gems and stones with gold trimmings and much more. One aspect the Taj Mahal has that outdoes Humauyn's Tomb is the emotional components placed in the space with the "four gardens." The labor for the Taj Mahal ("the Illumined Tomb") was fifteen years with twenty-thousand workers. The tomb was a symbol of Shah Jahan's love and respect for his late wife and celebrations were marked on the anniversary of her death.