Gongchen Gate, the Great North Gate of Xiangyang, stands as a rare survivor, holding the city's only intact defensive barbican. In the early Ming Dynasty, General Deng Yu pushed the city's northeastern boundary toward the Han River, creating the New City Bend. In 1576, Prefect Wan Zhensun named the gate Gongchen, invoking stars arching toward the North Star to honor the imperial court. Decades later, in 1641, the rebel leader Zhang Xianzhong swept through, tearing down the wooden tower and flattening the battlements. Yet, the stone foundations endured. By 1648, Magistrate Dong Shangzhi carved the inner plaque, Gongwei Chenyuan, reaffirming the gate's loyalty.

The structure is a masterpiece of dual-purpose engineering. Its seven-meter-tall walls consist of heavy blue brick masonry encasing a dense rammed earth core. The courtyard measures twenty-three meters long and ten and a half meters wide. Designed to trap invading soldiers in a deadly crossfire, the barbican also fought the river. The north wall has no openings, acting as a massive dike against the Han River. During the catastrophic flood of 1935, defenders closed the twenty-two-centimeter-thick waterproof gates, saving the city from inundation.

Today, the gate bears the physical scars of its long life. Visitors can still touch the rough cement slogans left on the north wall. Now recognized as a national heritage site and a key point on the historic Great Tea Road trade route, the gate has transitioned from a military shield to a cultural bridge. At night, modern wash lights illuminate the ancient masonry, casting a warm glow over the stones where soldiers, merchants, and floodwaters once clashed.