Discovering Medellín’s Hidden Underground Network
Beneath the bustling streets of Medellín lies a fascinating network of forgotten tunnels that tell the story of the city’s industrial past and urban development…
These underground passages, largely unknown to tourists and even many locals, offer a unique glimpse into Medellín’s transformation from an industrial hub to a modern metropolis.
The History Behind the Tunnels
Built primarily in the early-to-mid 20th century, these tunnels served various purposes: some were part of the city’s early infrastructure projects, others were connected to mining operations, and a few were created during periods of urban expansion.
Where to Find These Hidden Passages
While many tunnels remain inaccessible to the public for safety reasons, some can be explored with proper guidance:
- Centro Histórico – Several tunnels connect buildings in the historic center
- La Macarena – Industrial tunnels from the textile era
- Poblado – Underground passages related to early development
Safety Note: Always explore with local guides and proper permissions. Many tunnels are on private property or pose safety risks.
This hidden aspect of Medellín offers urban explorers and history enthusiasts a unique way to connect with the city’s lesser-known past.


