One of the lesser known attractions in Agra (the town where the Taj Mahal is located) is the Baby Taj Mahal. This is actually the tomb of Itmad-Ud-Daulah and is considered as a test building before the Taj Mahal. Located on the bank of the Yamuna river, the mausoleum is one of the first Mughal buildings to use white marble instead of sandstone.