experiences on camera and upload them to a you tube channel called global degree. with a few clicks, viewers can follow their adventures. after traveling through their first ten countries, the friends are visiting argentina's capital. locals suggest a great way to experience the city. >> the day we arrive in buenos aires they encouraged to us do a bike tour. hennessy records the ride with an outward facing gopro camera strapped to his helmet. he and mike explore the city with a group of about a dozen other tourists. >> they took us to a bunch of other areas, just beautiful landmarks and sights to see within buenos aires. >> just like most beautiful cities, this one has an ugly side. and the group is pedaling straight toward it. >> so we were biking along, you know, a set bike lane.