Traditional marketplaces are common in old city centers. Such places have a distinctive ambiance populated by local vendors, shoppers, visiting tourists, and pedestrians on their way to somewhere else. This genius loci or ‘collective spirit of place’ contributes to their character as destinations for people to visit and linger. They often serve as the focus of cultural heritage and historic preservation efforts in rapidly developing cities. The paper focuses on two marketplaces in Qatar: reconstructed Souq Al Wakrah in Al Wakrah and rehabilitated Souq Waqif in Old Doha. Souq is a term from the Arabic “sūq,” meaning market, marketplace, or bazaar. We examine their urban morphology and the probable impact on their function as public places today. Both share similarities, including topography, history, culture, and architecture. However, differences arose from settlement evolution in Al Wakrah and Doha. The paper argues these characteristics show the vital role that urban morphology can play in promoting walkability, even in harsh climatic conditions. We conclude by briefly summarizing the potential for urban design enhancements to support their long-term sustainability as cultural heritage districts.