Visitors pose for photos at the entrance of El Eden Mine in Zacatecas, state of Zacatecas, Mexico, May 7, 2025. Once a major silver mining region in Latin America, Zacatecas had promoted the city's historical prosperity with its mineral wealth. As resources exhausted, the city shifted its focus on culture and tourism by preserving its rich colonial architecture and mining heritage, including the historic city center, recognized as a UNESCO World Cultural Heritage Site, and the iconic El Eden Mine, and drawing numerous tourists from around the world. (Xinhua/Li Mengxin)

A worker repairs a sightseeing train at El Eden Mine in Zacatecas, state of Zacatecas, Mexico, May 7, 2025. Once a major silver mining region in Latin America, Zacatecas had promoted the city's historical prosperity with its mineral wealth. As resources exhausted, the city shifted its focus on culture and tourism by preserving its rich colonial architecture and mining heritage, including the historic city center, recognized as a UNESCO World Cultural Heritage Site, and the iconic El Eden Mine, and drawing numerous tourists from around the world. (Xinhua/Li Mengxin)

An aerial drone photo taken on May 7, 2025 shows a view of Bufa Hill in Zacatecas, state of Zacatecas, Mexico. Once a major silver mining region in Latin America, Zacatecas had promoted the city's historical prosperity with its mineral wealth. As resources exhausted, the city shifted its focus on culture and tourism by preserving its rich colonial architecture and mining heritage, including the historic city center, recognized as a UNESCO World Cultural Heritage Site, and the iconic El Eden Mine, and drawing numerous tourists from around the world. (Xinhua/Li Mengxin)

This photo taken on May 7, 2025 shows a statue of miners at El Eden Mine in Zacatecas, state of Zacatecas, Mexico. Once a major silver mining region in Latin America, Zacatecas had promoted the city's historical prosperity with its mineral wealth. As resources exhausted, the city shifted its focus on culture and tourism by preserving its rich colonial architecture and mining heritage, including the historic city center, recognized as a UNESCO World Cultural Heritage Site, and the iconic El Eden Mine, and drawing numerous tourists from around the world. (Xinhua/Li Mengxin)

A tour guide introduces the tourists (not in the photo) at El Eden Mine in Zacatecas, state of Zacatecas, Mexico, May 7, 2025. Once a major silver mining region in Latin America, Zacatecas had promoted the city's historical prosperity with its mineral wealth. As resources exhausted, the city shifted its focus on culture and tourism by preserving its rich colonial architecture and mining heritage, including the historic city center, recognized as a UNESCO World Cultural Heritage Site, and the iconic El Eden Mine, and drawing numerous tourists from around the world. (Xinhua/Li Mengxin)

Tourists visit the underground museum at El Eden Mine in Zacatecas, state of Zacatecas, Mexico, May 7, 2025. Once a major silver mining region in Latin America, Zacatecas had promoted the city's historical prosperity with its mineral wealth. As resources exhausted, the city shifted its focus on culture and tourism by preserving its rich colonial architecture and mining heritage, including the historic city center, recognized as a UNESCO World Cultural Heritage Site, and the iconic El Eden Mine, and drawing numerous tourists from around the world. (Xinhua/Li Mengxin)

This photo taken on May 6, 2025 shows a statue of a miner in Zacatecas, state of Zacatecas, Mexico. Once a major silver mining region in Latin America, Zacatecas had promoted the city's historical prosperity with its mineral wealth. As resources exhausted, the city shifted its focus on culture and tourism by preserving its rich colonial architecture and mining heritage, including the historic city center, recognized as a UNESCO World Cultural Heritage Site, and the iconic El Eden Mine, and drawing numerous tourists from around the world. (Xinhua/Li Mengxin)

An aerial drone photo taken on May 6, 2025 shows a view of the historic center of Zacatecas, state of Zacatecas, Mexico. Once a major silver mining region in Latin America, Zacatecas had promoted the city's historical prosperity with its mineral wealth. As resources exhausted, the city shifted its focus on culture and tourism by preserving its rich colonial architecture and mining heritage, including the historic city center, recognized as a UNESCO World Cultural Heritage Site, and the iconic El Eden Mine, and drawing numerous tourists from around the world. (Xinhua/Li Mengxin)

An aerial drone photo taken on May 6, 2025 shows Cathedral Basilica of Zacatecas, state of Zacatecas, Mexico. Once a major silver mining region in Latin America, Zacatecas had promoted the city's historical prosperity with its mineral wealth. As resources exhausted, the city shifted its focus on culture and tourism by preserving its rich colonial architecture and mining heritage, including the historic city center, recognized as a UNESCO World Cultural Heritage Site, and the iconic El Eden Mine, and drawing numerous tourists from around the world. (Xinhua/Li Mengxin)

An aerial drone photo taken on May 6, 2025 shows the city view of Zacatecas, state of Zacatecas, Mexico. Once a major silver mining region in Latin America, Zacatecas had promoted the city's historical prosperity with its mineral wealth. As resources exhausted, the city shifted its focus on culture and tourism by preserving its rich colonial architecture and mining heritage, including the historic city center, recognized as a UNESCO World Cultural Heritage Site, and the iconic El Eden Mine, and drawing numerous tourists from around the world. (Xinhua/Li Mengxin)