Lying southwest of the Bhadra Fort, this mosque is among Sultan Ahmed Shah's finest pieces of architecture. It was built in the year 1414 and is one of the oldest structures in the city. It comprises prayer halls, called mehrabs, which are made in black and white marble with detailed carvings. All the prayer halls have stone pillars, jaalis (lattice) work on ceilings and ornate carvings. Moreover, there are dome-like cupolas in every hall. There is a separate chamber with a prayer room for women in the northeast corner of the mosque, popularly known as zenana. When built, the mosque was meant to be a place of worship exclusively for the royals. Currently, it is one of the most-sought tourist attractions in Ahmedabad.  

Jama Masjid, one of India’s most marvellous pieces of architecture, was built during the rule of Ahmed Shah I, a ruler of Muzaffarid dynasty, in 1423, just west of the famous Manek Chowk. Away from the chaos of the city, through four gates in four directions, one can enter the mosque made of yellow sandstone with a blend of Indo-Saracenic architecture, with intricate carvings all along the walls and pillars. The main prayer hall has 260 columns supported by 15 domes. The wide, marble-floored courtyard is surrounded by an arcade painted in Arabic calligraphy. Right in the centre of the courtyard is a tank for ritual purifications. The two minarets by the main arched entrance collapsed in an earthquake in 1819 and only their lower portions remain now. 
The mosque contains a number of syncretic elements, which may not necessarily be obvious to the viewer. A few of the central domes have been carved like lotus flowers that are closely related to typical domes of Jain temples. Some pillars have been carved with the form of a bell hanging on a chain that has reference to the bells in Hindu temples.

Built in 1573, the Sidi Saiyyed Mosque lies off the eastern edge of the Nehru Bridge and is a remarkable structure. It is documented as the last major mosque built in Ahmedabad under the Mughal rule. Though it does not have a courtyard and is much smaller in size than the Jama Masjid, the mosque is famous for its craftsmanship. Inside the mosque are iconic windows with intricate, stone-filigree jaalis, one of which represents the tree of life. In this window, the jaali work has a tree with intertwining and overlapping branches. The carvings are so intricate that they look like fine lace. The mosque was constructed during the last year of the rule of Gujarat Sultanate and is a symbol of the time when Gujarat prospered under the rule of Muslim sultans.