This road once frequented by many vehicles (especially trucks) is today closed to traffic due to the high number of accidents (hence its name), but paradoxically has become one of the most popular tourist attractions in the country. It is a downhill bike ride from the highlands to the Yungas. If you manage to survive you will have witnessed some incredible scenery and, above all, you will have experienced one of the most intense emotions of your life. There are many agencies in La Paz offering this tour, taking you and your bike all the way up to the top by van. Try to do it with a good one (not the cheapest), because nobody wants to have their brakes fail in a descent like this... I think it is also possible to do it on your own if you have your own bike.
The tour ends a few kilometers from Coroico, before returning to La Paz, but, since this is an interesting place to visit, you can stay there and walk to the town. Best of Coroico, northeast of the department of La Paz, is that you will experience the amazing Yungas. That is, the transition between the high Andes and the Amazon rainforest. This pretty village is in a valley immersed in a cloud subtropical landscape of wooded hillsides. There are several trails nearby for hike, which include waterfalls and hill ascents.