The Royal or the Badshahi Mosque is across the courtyard from Alamgiri Gate of the Lahore Fort. The Mosque, which is made up entirely of red sand-stone was built by Emperor Aurangzeb, the last of the great Mughals, in a record time of two and-a-half years. Its construction was completed by 1674 A.D. It has a beautiful gate-way which measures 21.33 metres in length and a courtyard that measures 161.5 x 160.6 metres and is said to be the largest mosque courtyard in the world for outdoor prayers.
The marble domes cover seven prayer chambers. Four lofty minarets stand at the four corners of the mosque, each with an outer circumference of 20 metres, soaring up to 54 metres. In the chambers above the Gate of the mosque, are housed relics attributed to the Holy Prophet of Islam Peace be upon him, His Daughter and His son-in-law and are said to have been brought to the South Asia by Amir Taimur. Within the Mosque almost all the colours have been used for painting the floral designs but the overall effect remains one of sobriety, piousness and simplicity..