are found in eastern and central Bhutan, often accompanied by a protective wooden superstructure. The native Bhutanese style is a square stone pillar with a khemar near the top, sometimes accompanied by a ball and crescent to depict the sun and moon. This indigenous style represents a kind of reduced form of the classical stupa. Yet another style of chorten is supported on two pillars, under which people pass to gain merit. Bridges Mountainous Bhutan has always relied on bridges for travel across its many steep ravines and rushing rivers prone to disastrous flooding. The most traditional bridges of Bhutan are its cantilever bridges, however the kingdom also has several large suspension bridges. Bhutanese cantilever bridges are aggregations of massive, interlocking wooden structures that form a single bridge. These ancient bridges have supported centuries of human, animal, and increasingly industrial traffic. See also Dzong architecture Driglam Namzha Architecture of Tibet References Further reading