Explore an innovative approach to cross-city site recommendation in this 12-minute conference talk presented at SIGIR 2024. Delve into the application of optimal transport techniques for enhancing point of interest (POI) recommendations across different urban environments. Learn how authors Xinhang Li, Xiangyu Zhao, Zihao Wang, Yang Duan, Yong Zhang, and Chunxiao Xing tackle the challenges of recommending sites in unfamiliar cities by leveraging optimal transport methods. Gain insights into the potential improvements this approach offers for location-based services and personalized travel recommendations.