If you have free time in Taipei, I suggest you go to the Father of the Nation Memorial Hall in the afternoon. After watching the soldiers change positions at 3 o'clock, walk to the 101 Building and stroll around the mall (no need to buy too much), control at about 4:30 to buy tickets at 5 o'clock to get on the observation deck. This allows you to see three different panoramic views of Taipei during the day, evening and night.