The main gateway of Taj Mahal is a spectacular piece of architecture such as the dome and tomb room. This massive red sandstone gate forms the southern entrance to the Taj Mahal complex. The gate and forecourt in the front of it was designed to be the transition zone between the Mumtazabad and the serenity of the tomb complex.

The main gate looks like more like a building than a gate. A tall tower topped with a domed kiosk stands at each corner of the gate. Marching across the top of the gate are eleven small domed kiosks, exactly like those found on Akbar's tomb . The gate is inlaid with white marble, Arabic calligraphy from the Holy Quran and the floral design of precious stones. The doors are made up of precious metals. The enormous entry iwan is in the centre of the gate.

From the outside the gate is so large that it blocks the view of Taj Mahal as well as on other parts of the building. Through the gate, the Taj Mahal looks like a shimmering jewel, framed by the entry iwan. The Gateway of the Taj Mahal is a structure of great importance because of its function, size and majesty and beauty as compared to the building and the mausoleum