Running Man — Season 1, Episode 664

In this week's episode, the members go on the second trip of the Running Tour Project designed by Jae-suk, called Yoo Jae-suk's Exploration of Cultural Heritage. With enthusiastic Professor Yu, they arrive at Gyeongju the day before the shoot to join the tour early next morning. They will have history quizzes throughout the tour and get a Running Ball each time they score. With the Running Balls, they decide on the next trip designer for the Running Tour Project.