There are many online sources for music charts in various countries. you can simply search google for music chart [country name]. Here are a couple of good places to start. When you find the songs, you can find the songs on youtube in most cases. Also, the lyrics are usually available online and you can use Google to translate if the lyrics are in a language you cannot understand.
Travel guides are a good source of information for many of the questions you will need to answer for your homework assignments in this course. To find them in the library catalog, try searching the name of your country followed by -- guidebooks. For example, to find guidebooks for japan, you would search "japan -- guidebooks"