Baguashan in Changhua is home to one of the tallest Buddha statues (22m-high) in Taiwan and in the world. Baguashan also has a large temple complex just behind it, as well as some nice parks where you can stroll around.
There are rooms inside the Great Buddha Statue at Baguashan. You can visit them and check out some scenes from the life of the Buddha. It's not super interesting, but it's still worth the effort if you're already in the area.
The following pictures were taken at the temple complex behind the Giant Buddha Statue. On weekends, this place is very lively with families and tourists strolling around, paying respect to ancestors, eating traditional snacks, and snapping pictures. On weekdays, the whole place is extremely quiet.
High-Speed Rail (HSR) or normal train to Changhua, then bus or taxi to Baguashan.