I learned very quickly while researching destinations in Taiwan that there are several Confucious Temples in the country. That makes sense, given how important Confucious is in China's (and thus Taiwan's) history. This is the only temple that I made it to early enough to actually explore inside.
Unfortunately I couldn't spend any more time here because they were closing.
While the temple isn't too large, plan to stay for about an hour to really take your time and enjoy the entire area. I had less than 30 minutes to run around and see all I could, which certainly isn't peaceful!
The temple opens at 8:30, and stays open til 9 pm Tuesday through Saturday, and 5 pm on Sunday, but it's closed Monday. You can get there via a short walk west from Yuanshan Station.