This is the three storied summer pavilion of Lal Burj which is adjacent to Diwan-e-Khas and stands in the corner of Shah Jahan’s Quadrangle. The two stories (not the top most that was Sikh addition) together with the basement chambers are the beautiful work of Emperor Jahangir and Shah Jahan. The exterior is beautifully furnished with tile mosaic and filigree work, while the interior is a model of colourful fresco paintings.