What is sold at a bazaar?

Excuse me, could you please clarify what types of items are typically sold at a bazaar? Are they limited to traditional crafts and goods, or do they also encompass modern products and services? Additionally, are there any specific cultural or regional characteristics that influence the merchandise available at bazaars in different parts of the world? I'm particularly interested in understanding the diversity and uniqueness of the offerings found at these vibrant marketplaces.