I've seen murals before but never understood the meaning, impact, origin, or culture behind them. There is an entire universe here, encapsulated, that the majority of observers never see. Learning about the history of how murals came to be - and how they differ from graffiti - was quite interesting. As a former art student, I found it particularly inspiring. Our guide, Brian, was incredibly patient and understanding, as my body "wore out" before the tour was complete. His gentle encouragement lead us to our final - and most admired - piece: Robin Williams.