Santiago’s Metro is the backbone of public transportation in Chile’s capital, a sprawling network that efficiently ferries millions of passengers daily. Officially opened in 1975, the Metro has steadily grown to become one of the most extensive metro systems in Latin America, playing a crucial role in the city’s urban landscape. Currently, the system comprises seven lines, numbered 1 through 6 and 4A, totaling over 140 stations and extending across more than 140 kilometers. Each line is distinguished by a unique color, making navigation relatively simple for both residents and tourists. Line 1, the oldest and busiest line, runs east-west along the city’s primary avenue, Avenida Libertador Bernardo O’Higgins (Alameda), connecting key commercial and residential areas. Newer lines, such as Line 3 and Line 6, boast modern rolling stock and enhanced accessibility features, contributing to a more comfortable and efficient commute. The Metro de Santiago is renowned for its cleanliness, punctuality, and safety, although peak hours can be intensely crowded. Trains operate frequently, typically every few minutes, significantly reducing wait times. Integrated ticketing using the “Bip!” card simplifies fare payment and enables seamless transfers between metro lines and other public transport modes, including buses. The Bip! card can be recharged at stations and authorized points throughout the city. Beyond its functional purpose, the Metro de Santiago also serves as a cultural space. Several stations showcase impressive artwork, including murals and sculptures, enriching the daily commute and reflecting the city’s artistic spirit. Station Baquedano, for instance, is a central hub and a meeting point for social and political demonstrations, reflecting the Metro’s role in the city’s social fabric. The Metro has undergone significant expansions and upgrades throughout its history. Responding to Santiago’s rapid growth, extensions and new lines have been added to reach previously underserved areas and alleviate congestion on existing routes. The continued investment in the Metro reflects its importance in supporting the city’s economic activity and improving the quality of life for its residents. Despite its successes, the Metro has faced challenges. Fare increases in 2019 triggered widespread protests, highlighting the complexities of balancing affordability and operational costs. The subsequent damage to stations during the protests led to temporary closures and extensive repairs. These events underscored the Metro’s central role in the city’s social and political landscape, emphasizing its importance not only as a transportation system but also as a symbol of access and equity. Looking ahead, further expansions and technological advancements are planned to enhance the Metro’s capacity and efficiency. The ongoing development demonstrates the commitment to providing a sustainable and reliable public transportation system for Santiago’s growing population, ensuring the Metro de Santiago remains a vital component of the city’s future.