During the Mughal era design elements of Islamic-Persian architecture were fused with and often produced playful forms of the Hindustani art. Lahore, occasional residence of Mughal rulers, exhibits a multiplicity of important buildings from the empire, among them the Badshahi mosque (built 1673-1674), the fortress of Lahore (16th and 17th centuries) with the famous Alamgiri Gate, the colourful Wazir Khan Mosque, (Lahore, 1634-1635) as well as numerous other mosques and mausoleums. The Shahjahan Mosque at Thatta, Sindh was built under, and probably largely by Shah Jahan, but strongly reflects Central Asian Islamic style, as the emperor had recently been campaigning near Samarkand. Singularly, the innumerable Chaukhandi tombs are of eastern influence. Although constructed between 16th and 18th centuries, they do not possess any similarity to Mughal architecture. The stonemason works show rather typical Sindhi workmanship, probably from before Islamic times.