Which temple is a significant site for witnessing the Yi Peng festival?
A Wat Phra Kaew
B Phra That Hariphunchai
C Wat Arun
Fact: The temple of Phra That Hariphunchai in Lamphun is highlighted as a striking place to observe the Yi Peng festival, making this the correct answer.
Correct Answer: Phra That Hariphunchai