Potosí, Bolivia Potosí is a city steeped in history, once one of the richest cities in the world due to its silver mines. Situated at an altitude of over 13,000 feet, it offers stunning colonial architecture, including the famous San Francisco Church and the Royal Mint. The city’s most notable landmark is the Cerro Rico mountain, which was once the center of the Spanish colonial silver mining empire. Today, Potosí is a UNESCO World Heritage Site, attracting visitors who wish to explore its fascinating history, vibrant culture, and unique landscapes.