For convenience, they were mostly along the city's major streets or near its main gates, usually within the main commercial districts and near its workshops. Some funduqs were specialized for particular types of goods: for example, the funduq as-sukkar was specialized in the sugar trade, the funduq al-'atriyya was for spice merchants, etc. Others were associated with particular merchant guilds or even with particular Sufi religious brotherhoods.[25][26][27]