IELTS Speaking: Describe a city

This is actually a very common topic in speaking. You may be asked to describe your hometown, a city you travelled to, a place you want to travel to, etc. However, when comes to hometown, some of my students have no ideas about what should they talk about during the exam. A lot of students, particular Asian students, they always give answers like this, "I'm from Beijing, the capital city of China. My hometown is a very beautiful city. Er… I love me city. Er…" – speechless

This is your hometown, why can’t you think of any ideas about that?

Here is a video about Melbourne from Youtube, what kinds of information has been mentioned in this video clips?