Depending on who you talk to, Guatemala City (or Guate as it's also known) is either big, dirty, dangerous and utterly forgettable, or big, dirty, dangerous and utterly fascinating. Either way, there's no doubt there's an energy here unlike anywhere else in Guatemala. It's a place where dilapidated buses belch fumes next to BMWs and Hummers, and where skyscrapers drop shadows on shantytowns.