A pagoda is a tiered tower with multiple eaves common to China, Japan, Korea, and other parts of Asia. The pagoda evolved from the Indian stupa—a dome-shaped shrine for Buddhist relics—and, like the stupa, is typically built for religious, often Buddhist, purposes. Whether octagonal, hexagonal, or square, pagodas are intended mainly as monuments and tend to have very little usable interior space. What is the “demon-arrester” that tops some pagodas? Discuss