Architecture and design
The Taj Mahal incorporates and spreads the design traditions of Persian and earlier Mughal architecture. The success came from Timurid and Mughal buildings, including Gore Amir (Timur's tomb, the forerunner of the Mughal dynasty in Samarkand), Humayun's tomb, which influenced the Charbagh Gardens and the Hasht Besht (architecture) project. This site, the mausoleum of Atam Udd al-Dawla (sometimes called the Crown), and Shah Jahan's own Jama Masjid in Delhi. Whereas earlier Mughal buildings were mainly made of red stone, Shah Jahan promoted the use of white marble with semi-precious stones. Under his tutelage, buildings reached new levels of improvement.