Perched in Yuzhong District, this 79-meter-tall, 11-story landmark covers 31,500 square meters. Originally a Warring States-era military fortress (316 BCE), Hongyadong evolved into a Song Dynasty grotto temple and later integrated with the Hongyamen, which was originally an open gate. In the 4th year of the Hongwu reign of the Ming Dynasty (1371), Dai Ding rebuilt Chongqing City, creating nine open gates and eight closed gates, with Hongyamen serving as a closed gate. During the Ming Dynasty, it thrived as a bustling commercial hub, and by the Qing Dynasty, it had developed into a prosperous river port, acting as a trade center for Chongqing. Reborn in 2006, Hongyadong now features stilted houses, retro-style commercial streets, and the iconic Hongya Emerald waterfall (Hongya Dicui). Its labyrinth of shops offers local cuisine, entertainment, and handicrafts, cementing its status as one of the “Twelve Scenic Treasures of Bayu” and a representative attraction in Chongqing’s first billion-yuan business district.