Ten kilometers (6 1/4 miles) west of Turpan, these ruins are better preserved and enjoy a more spectacular location than Gaochang, though they are historically less significant. Originally a Hàn garrison town, it has no city walls, as the site (which means "meeting of the rivers") is bounded by steep ravines. A clear central avenue runs east-west through the town, with residential, religious, and governmental areas delineated. The reason for the demise of the settlement during the Yuán dynasty is unclear -- the depth of the numerous wells suggests the water supply may have run out. Jiaohé can be reached by taxi for ¥20 ($2.50) round-trip; or make it a pleasant bike ride.