The tourists to Hangzhou must have walked along the two famous causeways, Bai Causeway and Su Causeway. It is said that Bai Juyi and Su Dongpo, the two famous Chinese ancient poets, had been the local officials in Hangzhou. They had taken change of constructing these two causeways respectively. In fact, the Su Causeway we see today is not completely built by Su Dongpo, while Bai Causeway has nothing to do with Bai Juyi. However, people named these two causeways after these two local officials to express respects for them.