During the 16th century a number of commercial facilities was built, such as bezistans, hans, and caravanserais.[citation needed] Sarajevo was an important center of trade in the Balkans and had three bezistans (today the Gazi Husrev-begov bezistan and Brusa bezistan are still standing). There were colonies of Venetian and Ragusan traders, and Baščaršija had approximately 12,000 commercial and craft shops. [citation needed]