Beneath a busy avenue in the American Midwest, the hum of traffic never ceases. Cars, buses, and trucks move above a hidden world they are unaware of—subway platforms built nearly a century ago, waiting for passengers who will never arrive. These stations, located just a few meters below the surface, remain intact, frozen in time, disturbed only by the quiet hum of pipes and the occasional maintenance work. They are a relic of a forgotten dream, buried beneath the city's modern rhythm. The story of these underground tunnels begins with a canal. Constructed in the 19th century to transport goods and people, the canal eventually became obsolete with the rise of the railroad. Over time, it turned into a stagnant, smelly ditch, running through the heart of the city with no further purpose. Instead of letting it decay, city officials saw an opportunity: they could drain the canal and transform its bed into a subway. Between 1920 and 1928, a complete subway system was excavated beneath the avenue, with stations, platforms, and carefully built brick vaults. But the project was never completed due to a lack of funding and the economic crisis of the 1920s. At the time, the idea of building a subway in the city center had widespread support. A referendum passed, and the plan seemed logical—reusing an existing route, avoiding the need to displace neighborhoods, and offering a solution to urban congestion. Construction began in the early 1920s, during a period of optimism and expansion. However, as the decade progressed, the project ran into financial trouble. The initial budget, already strained by post-war inflation, was insufficient to complete the entire route. While the underground tunnels were finished, the aerial components—like rails, trains, and signaling systems—were never built. The project ended in limbo, neither completed nor fully abandoned. Today, the avenue above hides the forgotten subway, now used to house water pipes and electrical wiring. The tunnels and stations remain in surprisingly good condition, often surprising those who explore them. While the idea of repurposing the space has come up repeatedly over the years—proposals ranging from museums to underground cycling tracks—none have led to a permanent solution. The cost of restoration and the lack of consensus on the best use for the space have kept the project in a state of suspended animation. Meanwhile, the city above continues to change, unaware of the silent, waiting platforms beneath its feet.