Subterranean Chicago, IL, often referred to as the "Chicago Pedway," is an extensive network of underground tunnels, concourses, and skybridges that connect various buildings in the downtown area. Spanning over 40 blocks, this hidden labyrinth provides a sheltered pathway for pedestrians to navigate the city, especially during harsh weather conditions. The Pedway links major landmarks, including office buildings, hotels, shopping centers, and public transit stations, making it a vital artery for daily commuters and tourists alike. With its own unique ecosystem of shops, eateries, and services, Subterranean Chicago offers a fascinating glimpse into the city's innovative approach to urban planning and connectivity.