The Tunnels of Puebla
The residents of Puebla City, Mexico, have always known something sinister is going on beneath the city. Some people called it an ‘urban legend’, while others swore to have felt underground movement, hearing voices from below, and seeing strange figures come up from beneath the ground.
In 2015, this urban legend was proved to be completely real. A vast system of underground tunnels was discovered beneath the city. A crew started to explore the tunnels and discovered about six miles of strange passageways with items and writings that can be dated back to the 16th century. The sinister purpose of the tunnels remains unknown to this day, but it is open for brave tourists who want to explore it for themselves.