The Incredible Bamboo Bridge That's Rebuilt Every Year. The Koh Pen Bridge spanning the Mekong River in Cambodia is a magnificent feat of traditional engineering. This bridge, made entirely of bamboo, is built every year during the dry season and dismantled by locals before the monsoon season.
The strong currents of the Mekong River prevent this bridge from surviving during the rainy season. So the bridge is dismantled and the bamboo is preserved, which is used to rebuild it the following year. Many may think it's only for pedestrians, but it's also suitable for bicycles, motorbikes, cars and even trucks. Crossing this sturdy yet flexible bridge is a thrilling experience.
There's a fee of just $0.25 to cross the bridge, which helps maintain it and preserve this tradition. This bridge has been rebuilt over the years with the dedicated efforts of locals, an example of the extraordinary union of nature and man.