The Trấn Quốc Pagoda is the oldest pagoda in Hanoi, having been built in the 6th century during the reign of Lynam. It was originally located on the Red River but moved to West Lake in the 17th century. It has a very unique structure consisting of 11 octagonal floors; the whole building is painted a deep red color and is surrounded by other temples.
I was intrigued when the guide told is that the tree in the courtyard is a Bodhi tree from India. He said it came from the one where Buddha himself gained enlightenment. Whether that claim is truth or legend, I have to note that the temple itself and surrounding area had almost no visitors.