I took a day trip out of the city to see the Cao Dai temple and thought it was well worth it. I hired a driver who took me through the hustle and bustle of the city out into the spanning green rice fields. We went through a couple small communities that still had loud speakers with messages. Cao Dai was one of the more interesting temples with bits and pieces of everything from animism to Hinduism. Makesure you stay for the ceremony and get a spot next to a fan. The upper deck is warm to say the least.