Step into living hydraulics history at Shaoxian Sluice Gate, where 14th-century engineering marvels still whisper tales of the Grand Canal's golden age! The arched brick passageway reveals intricately carved water-dividing grooves, with the ancient canal channel creating a mesmerizing soundtrack. Come at dusk when gilded sunlight transforms the stone structure into a poetic silhouette—you'll swear you've time-traveled to Yangzhou's heyday as the "City of Salt and Merchants."