9. Cadiz, Spain
Cadiz played a pivotal role as a trading and financial powerhouse for the Spanish Empire, deeply entwined with the profits of slave labor in the Americas. Its bustling port connected Spain with other Atlantic cities, facilitating the flow of goods and wealth derived from enslaved people’s labor. The city’s elegant plazas and mercantile buildings are lasting reminders of this lucrative, exploitative era. For a deeper look at Cadiz’s role in the slave trade, visit History Today.
