Chengyang Bridge, China

Chengyang+Bridge%2C+China

The Chengyang Bridge (or Wind and Rain Bridge) was built in 1912 out of wood using no nails.  All the wood is fitted together and it is still standing and in use.

Here is a link to the wikipedia page:  https://en.wikipedia.org/wiki/Chengyang_Bridge

Here is a story on Bridgesdb.com:  http://www.bridgesdb.com/bridge-list/chengyang-bridge/