North Yungas Road or "Death Road" is the most dangerous road in the world. Located near La Paz, this road can be ridden down by tourists on either a bicycle or motorbike. Along the way you will pass numerous memorials to all those unlucky drivers who have plunged off the side. The road starts high in the cold mountains and winds down into the humid jungles below. The views are amazing, just don't be too distracted or you might have a memorial of your own.
This is not for the faint of heart or inexperienced bicyclists. The road is steep, windy and rocky and accidents still happen. This can be accomplished in a day trip from La Paz from numerous tour agencies offering different gear and options.