In a region packed with historically important cities, few can claim to have played such a long and pivotal role as Puebla.

These tunnels have connected key places around town for centuries, and you can take a guided tour to learn more about how they were used during the Battle of Puebla.

Life spills into the El Alto outdoor market of Puebla, where "present and past coexist and harmonize," says Francine Prose. Landon Nordeman Despite (or because of) its monumental scale ...

Calcium carbonate dust found in the tunnels is also a common excretion from microbes that live in these types of rocks. However, no fossilized organisms have yet been found—just evidence of ...

After the Shambler fight, once Ellie and Dina have gone through the chain gated door, run right down a corridor and find a blue door. Go in and in the upper-right corner of the room, crawl under ...