A single wall would be enough to make Chengqilou imposing. Its real surprise is what happens inside: the eye meets another roof, then another, with an ancestral hall occupying the centre. The building belongs to the Gaobei tulou cluster in Yongding. Its familiar nickname, the “King of Tulou,” expresses admiration for its scale, but the more revealing feature is the organization of that scale.
The house is usually described as three concentric residential rings surrounding a central hall. The outer ring rises four storeys; inner structures step down towards the middle. A plan makes the geometry immediately clear. Standing within it introduces a different question: how can so much built space still receive daylight and remain connected?
