Indo-Islamic architecture is the architecture of the Indian subcontinent produced by and for Islamic patrons and purposes. Despite an initial Arab presence in Sindh, the development of Indo-Islamic architecture began in earnest with the establishment of Delhi as the capital of the Ghurid dynasty in 1193. Succeeding the Ghurids was the Delhi Sultanate, a series of Central Asian dynasties that consolidated much of North India, and later the Mughal Empire by the 15th century. Both of these dynasties introduced Persianate architecture and art styles from Western Eurasia into the Indian subcontinent. The types and forms of large buildings required by Muslim elites, with mosques and tombs much the most common, were very different from those previously built in India. The exteriors of both were very often topped by large domes, and made extensive use of arches. Both of these features were hardly used in Hindu temple architecture and other indigenous Indian styles. Both types of building essentially consist of a single large space under a high dome, and completely avoid the figurative sculpture so important to Hindu temple architecture. Islamic buildings initially adapted the skills of a workforce trained in earlier Indian traditions to their own designs. Unlike most of the Islamic world, where brick tended to predominate, India had highly skilled builders well used to producing stone masonry of extremely high quality. Alongside the architecture developed in Delhi and prominent centres of Mughal culture such as Agra, Lahore and Allahabad, a variety of regional styles developed in regional kingdoms like the Bengal, Gujarat, Deccan, Jaunpur and Kashmir Sultanates. By the Mughal period, generally agreed to represent the peak of the style, aspects of Islamic style began to influence architecture made for Hindus, with even temples using scalloped arches, and later domes. This was especially the case in palace architecture. Following the collapse of the Mughal Empire, regional nawabs such as in Lucknow, Hyderabad and Mysore continued to commission and patronize the construction of Mughal-style architecture in the princely states. Indo-Islamic architecture has left a large impact on modern Indian, Pakistani and Bangladeshi architecture, as in the case of its influence on the Indo-Saracenic Revivalism of the late British Raj. Both secular and religious buildings are influenced by Indo-Islamic architecture. Architecture of the Delhi Sultanate The best-preserved example of a mosque from the days of the infancy of Islam in South Asia is the ruined mosque at Banbhore in Sindh,