Later on in our bus and walking tour, we visited the oldest part of the town (not counting the Roman ruins). It's got the narrow, winding streets we've become familiar with, but it's also got a distinctive feature - traboules and miraboules. Traboules are passageways through occupied buildings that connect one steet to another. According to our gude, as the town grew more populous,there was a need for more streets, but the town was already laid out and there was no room for new ones so they built the traboules into the allready existing grid as a way of moving more people and goods through the town. Latler, during WWII, the Resistance used the network of passageways to evade the Nazis. Some a now abandoned or used for storage, but we were able to walk through a few, including one that is actually a mirabole - because it opens into a coirtyard. The one we visited is famous for it's red tower that rises upfrom the miraboule courtyard.