Introduction to Bubu Gaosheng Alley: Nanping Village has a total of 72 alleys, so Nanping Village is also known as a "maze-like village". Bubu Gaosheng Alley, also known as "Changfang Alley", is the longest and most hierarchical of the 72 alleys. There are 23 steps at the end, one step higher than the next, so the villagers call it "Bubu Gaosheng Alley" .